21805368

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1487}}^1$

素因数の和:1556

約数の個数: 64

約数和(自身を含む): 59996160

約数和(自身を除く): 38190792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 47, 52, 78, 94, 104, 141, 156, 188, 282, 312, 376, 564, 611, 1128, 1222, 1487, 1833, 2444, 2974, 3666, 4461, 4888, 5948, 7332, 8922, 11896, 14664, 17844, 19331, 35688, 38662, 57993, 69889, 77324, 115986, 139778, 154648, 209667, 231972, 279556, 419334, 463944, 559112, 838668, 908557, 1677336, 1817114, 2725671, 3634228, 5451342, 7268456, 10902684, 21805368]

約数ペア:

[(1, 21805368), (2, 10902684), (3, 7268456), (4, 5451342), (6, 3634228), (8, 2725671), (12, 1817114), (13, 1677336), (24, 908557), (26, 838668), (39, 559112), (47, 463944), (52, 419334), (78, 279556), (94, 231972), (104, 209667), (141, 154648), (156, 139778), (188, 115986), (282, 77324), (312, 69889), (376, 57993), (564, 38662), (611, 35688), (1128, 19331), (1222, 17844), (1487, 14664), (1833, 11896), (2444, 8922), (2974, 7332), (3666, 5948), (4461, 4888)]