21812868

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 192

約数和(自身を含む): 73328640

約数和(自身を除く): 51515772

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 43, 44, 54, 61, 63, 66, 77, 84, 86, 99, 108, 122, 126, 129, 132, 154, 172, 183, 189, 198, 231, 244, 252, 258, 297, 301, 308, 366, 378, 387, 396, 427, 462, 473, 516, 549, 594, 602, 671, 693, 732, 756, 774, 854, 903, 924, 946, 1098, 1161, 1188, 1204, 1281, 1342, 1386, 1419, 1548, 1647, 1708, 1806, 1892, 2013, 2079, 2196, 2322, 2562, 2623, 2684, 2709, 2772, 2838, 3294, 3311, 3612, 3843, 4026, 4158, 4257, 4644, 4697, 5124, 5246, 5418, 5676, 6039, 6588, 6622, 7686, 7869, 8052, 8127, 8316, 8514, 9394, 9933, 10492, 10836, 11529, 12078, 12771, 13244, 14091, 15372, 15738, 16254, 17028, 18117, 18361, 18788, 19866, 23058, 23607, 24156, 25542, 28182, 28853, 29799, 31476, 32508, 36234, 36722, 39732, 42273, 46116, 47214, 51084, 55083, 56364, 57706, 59598, 70821, 72468, 73444, 84546, 86559, 89397, 94428, 110166, 115412, 119196, 126819, 141642, 165249, 169092, 173118, 178794, 201971, 220332, 253638, 259677, 283284, 330498, 346236, 357588, 403942, 495747, 507276, 519354, 605913, 660996, 779031, 807884, 991494, 1038708, 1211826, 1558062, 1817739, 1982988, 2423652, 3116124, 3635478, 5453217, 7270956, 10906434, 21812868]

約数ペア:

[(1, 21812868), (2, 10906434), (3, 7270956), (4, 5453217), (6, 3635478), (7, 3116124), (9, 2423652), (11, 1982988), (12, 1817739), (14, 1558062), (18, 1211826), (21, 1038708), (22, 991494), (27, 807884), (28, 779031), (33, 660996), (36, 605913), (42, 519354), (43, 507276), (44, 495747), (54, 403942), (61, 357588), (63, 346236), (66, 330498), (77, 283284), (84, 259677), (86, 253638), (99, 220332), (108, 201971), (122, 178794), (126, 173118), (129, 169092), (132, 165249), (154, 141642), (172, 126819), (183, 119196), (189, 115412), (198, 110166), (231, 94428), (244, 89397), (252, 86559), (258, 84546), (297, 73444), (301, 72468), (308, 70821), (366, 59598), (378, 57706), (387, 56364), (396, 55083), (427, 51084), (462, 47214), (473, 46116), (516, 42273), (549, 39732), (594, 36722), (602, 36234), (671, 32508), (693, 31476), (732, 29799), (756, 28853), (774, 28182), (854, 25542), (903, 24156), (924, 23607), (946, 23058), (1098, 19866), (1161, 18788), (1188, 18361), (1204, 18117), (1281, 17028), (1342, 16254), (1386, 15738), (1419, 15372), (1548, 14091), (1647, 13244), (1708, 12771), (1806, 12078), (1892, 11529), (2013, 10836), (2079, 10492), (2196, 9933), (2322, 9394), (2562, 8514), (2623, 8316), (2684, 8127), (2709, 8052), (2772, 7869), (2838, 7686), (3294, 6622), (3311, 6588), (3612, 6039), (3843, 5676), (4026, 5418), (4158, 5246), (4257, 5124), (4644, 4697)]