21402648

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:309

約数の個数: 96

約数和(自身を含む): 61501440

約数和(自身を除く): 40098792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 43, 62, 72, 86, 93, 124, 129, 172, 186, 223, 248, 258, 279, 344, 372, 387, 446, 516, 558, 669, 744, 774, 892, 1032, 1116, 1333, 1338, 1548, 1784, 2007, 2232, 2666, 2676, 3096, 3999, 4014, 5332, 5352, 6913, 7998, 8028, 9589, 10664, 11997, 13826, 15996, 16056, 19178, 20739, 23994, 27652, 28767, 31992, 38356, 41478, 47988, 55304, 57534, 62217, 76712, 82956, 86301, 95976, 115068, 124434, 165912, 172602, 230136, 248868, 297259, 345204, 497736, 594518, 690408, 891777, 1189036, 1783554, 2378072, 2675331, 3567108, 5350662, 7134216, 10701324, 21402648]

約数ペア:

[(1, 21402648), (2, 10701324), (3, 7134216), (4, 5350662), (6, 3567108), (8, 2675331), (9, 2378072), (12, 1783554), (18, 1189036), (24, 891777), (31, 690408), (36, 594518), (43, 497736), (62, 345204), (72, 297259), (86, 248868), (93, 230136), (124, 172602), (129, 165912), (172, 124434), (186, 115068), (223, 95976), (248, 86301), (258, 82956), (279, 76712), (344, 62217), (372, 57534), (387, 55304), (446, 47988), (516, 41478), (558, 38356), (669, 31992), (744, 28767), (774, 27652), (892, 23994), (1032, 20739), (1116, 19178), (1333, 16056), (1338, 15996), (1548, 13826), (1784, 11997), (2007, 10664), (2232, 9589), (2666, 8028), (2676, 7998), (3096, 6913), (3999, 5352), (4014, 5332)]