21736890

素因数分解:

$2^1\times 3^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:114

約数の個数: 192

約数和(自身を含む): 70917120

約数和(自身を除く): 49180230

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 49, 53, 54, 62, 63, 70, 90, 93, 98, 105, 106, 126, 135, 147, 155, 159, 186, 189, 210, 217, 245, 265, 270, 279, 294, 310, 315, 318, 371, 378, 434, 441, 465, 477, 490, 530, 558, 630, 651, 735, 742, 795, 837, 882, 930, 945, 954, 1085, 1113, 1302, 1323, 1395, 1431, 1470, 1519, 1590, 1643, 1674, 1855, 1890, 1953, 2170, 2205, 2226, 2385, 2597, 2646, 2790, 2862, 3038, 3255, 3286, 3339, 3710, 3906, 4185, 4410, 4557, 4770, 4929, 5194, 5565, 5859, 6510, 6615, 6678, 7155, 7595, 7791, 8215, 8370, 9114, 9765, 9858, 10017, 11130, 11501, 11718, 12985, 13230, 13671, 14310, 14787, 15190, 15582, 16430, 16695, 19530, 20034, 22785, 23002, 23373, 24645, 25970, 27342, 29295, 29574, 33390, 34503, 38955, 41013, 44361, 45570, 46746, 49290, 50085, 57505, 58590, 68355, 69006, 70119, 73935, 77910, 80507, 82026, 88722, 100170, 103509, 115010, 116865, 136710, 140238, 147870, 161014, 172515, 205065, 207018, 221805, 233730, 241521, 310527, 345030, 350595, 402535, 410130, 443610, 483042, 517545, 621054, 701190, 724563, 805070, 1035090, 1207605, 1449126, 1552635, 2173689, 2415210, 3105270, 3622815, 4347378, 7245630, 10868445, 21736890]

約数ペア:

[(1, 21736890), (2, 10868445), (3, 7245630), (5, 4347378), (6, 3622815), (7, 3105270), (9, 2415210), (10, 2173689), (14, 1552635), (15, 1449126), (18, 1207605), (21, 1035090), (27, 805070), (30, 724563), (31, 701190), (35, 621054), (42, 517545), (45, 483042), (49, 443610), (53, 410130), (54, 402535), (62, 350595), (63, 345030), (70, 310527), (90, 241521), (93, 233730), (98, 221805), (105, 207018), (106, 205065), (126, 172515), (135, 161014), (147, 147870), (155, 140238), (159, 136710), (186, 116865), (189, 115010), (210, 103509), (217, 100170), (245, 88722), (265, 82026), (270, 80507), (279, 77910), (294, 73935), (310, 70119), (315, 69006), (318, 68355), (371, 58590), (378, 57505), (434, 50085), (441, 49290), (465, 46746), (477, 45570), (490, 44361), (530, 41013), (558, 38955), (630, 34503), (651, 33390), (735, 29574), (742, 29295), (795, 27342), (837, 25970), (882, 24645), (930, 23373), (945, 23002), (954, 22785), (1085, 20034), (1113, 19530), (1302, 16695), (1323, 16430), (1395, 15582), (1431, 15190), (1470, 14787), (1519, 14310), (1590, 13671), (1643, 13230), (1674, 12985), (1855, 11718), (1890, 11501), (1953, 11130), (2170, 10017), (2205, 9858), (2226, 9765), (2385, 9114), (2597, 8370), (2646, 8215), (2790, 7791), (2862, 7595), (3038, 7155), (3255, 6678), (3286, 6615), (3339, 6510), (3710, 5859), (3906, 5565), (4185, 5194), (4410, 4929), (4557, 4770)]