21700140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1$

素因数の和:109

約数の個数: 216

約数和(自身を含む): 78963696

約数和(自身を除く): 57263556

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 61, 66, 70, 77, 84, 98, 105, 110, 121, 122, 132, 140, 147, 154, 165, 183, 196, 210, 220, 231, 242, 244, 245, 294, 305, 308, 330, 363, 366, 385, 420, 427, 462, 484, 490, 539, 588, 605, 610, 660, 671, 726, 732, 735, 770, 847, 854, 915, 924, 980, 1078, 1155, 1210, 1220, 1281, 1342, 1452, 1470, 1540, 1617, 1694, 1708, 1815, 1830, 2013, 2135, 2156, 2310, 2420, 2541, 2562, 2684, 2695, 2940, 2989, 3234, 3355, 3388, 3630, 3660, 4026, 4235, 4270, 4620, 4697, 5082, 5124, 5390, 5929, 5978, 6405, 6468, 6710, 7260, 7381, 8052, 8085, 8470, 8540, 8967, 9394, 10065, 10164, 10780, 11858, 11956, 12705, 12810, 13420, 14091, 14762, 14945, 16170, 16940, 17787, 17934, 18788, 20130, 22143, 23485, 23716, 25410, 25620, 28182, 29524, 29645, 29890, 32340, 32879, 35574, 35868, 36905, 40260, 44286, 44835, 46970, 50820, 51667, 56364, 59290, 59780, 65758, 70455, 71148, 73810, 88572, 88935, 89670, 93940, 98637, 103334, 110715, 118580, 131516, 140910, 147620, 155001, 164395, 177870, 179340, 197274, 206668, 221430, 258335, 281820, 310002, 328790, 355740, 361669, 394548, 442860, 493185, 516670, 620004, 657580, 723338, 775005, 986370, 1033340, 1085007, 1446676, 1550010, 1808345, 1972740, 2170014, 3100020, 3616690, 4340028, 5425035, 7233380, 10850070, 21700140]

約数ペア:

[(1, 21700140), (2, 10850070), (3, 7233380), (4, 5425035), (5, 4340028), (6, 3616690), (7, 3100020), (10, 2170014), (11, 1972740), (12, 1808345), (14, 1550010), (15, 1446676), (20, 1085007), (21, 1033340), (22, 986370), (28, 775005), (30, 723338), (33, 657580), (35, 620004), (42, 516670), (44, 493185), (49, 442860), (55, 394548), (60, 361669), (61, 355740), (66, 328790), (70, 310002), (77, 281820), (84, 258335), (98, 221430), (105, 206668), (110, 197274), (121, 179340), (122, 177870), (132, 164395), (140, 155001), (147, 147620), (154, 140910), (165, 131516), (183, 118580), (196, 110715), (210, 103334), (220, 98637), (231, 93940), (242, 89670), (244, 88935), (245, 88572), (294, 73810), (305, 71148), (308, 70455), (330, 65758), (363, 59780), (366, 59290), (385, 56364), (420, 51667), (427, 50820), (462, 46970), (484, 44835), (490, 44286), (539, 40260), (588, 36905), (605, 35868), (610, 35574), (660, 32879), (671, 32340), (726, 29890), (732, 29645), (735, 29524), (770, 28182), (847, 25620), (854, 25410), (915, 23716), (924, 23485), (980, 22143), (1078, 20130), (1155, 18788), (1210, 17934), (1220, 17787), (1281, 16940), (1342, 16170), (1452, 14945), (1470, 14762), (1540, 14091), (1617, 13420), (1694, 12810), (1708, 12705), (1815, 11956), (1830, 11858), (2013, 10780), (2135, 10164), (2156, 10065), (2310, 9394), (2420, 8967), (2541, 8540), (2562, 8470), (2684, 8085), (2695, 8052), (2940, 7381), (2989, 7260), (3234, 6710), (3355, 6468), (3388, 6405), (3630, 5978), (3660, 5929), (4026, 5390), (4235, 5124), (4270, 5082), (4620, 4697)]