21284016

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1483}}^1$

素因数の和:1530

約数の個数: 80

約数和(自身を含む): 61829376

約数和(自身を除く): 40545360

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 69, 78, 92, 104, 138, 156, 184, 208, 276, 299, 312, 368, 552, 598, 624, 897, 1104, 1196, 1483, 1794, 2392, 2966, 3588, 4449, 4784, 5932, 7176, 8898, 11864, 14352, 17796, 19279, 23728, 34109, 35592, 38558, 57837, 68218, 71184, 77116, 102327, 115674, 136436, 154232, 204654, 231348, 272872, 308464, 409308, 443417, 462696, 545744, 818616, 886834, 925392, 1330251, 1637232, 1773668, 2660502, 3547336, 5321004, 7094672, 10642008, 21284016]

約数ペア:

[(1, 21284016), (2, 10642008), (3, 7094672), (4, 5321004), (6, 3547336), (8, 2660502), (12, 1773668), (13, 1637232), (16, 1330251), (23, 925392), (24, 886834), (26, 818616), (39, 545744), (46, 462696), (48, 443417), (52, 409308), (69, 308464), (78, 272872), (92, 231348), (104, 204654), (138, 154232), (156, 136436), (184, 115674), (208, 102327), (276, 77116), (299, 71184), (312, 68218), (368, 57837), (552, 38558), (598, 35592), (624, 34109), (897, 23728), (1104, 19279), (1196, 17796), (1483, 14352), (1794, 11864), (2392, 8898), (2966, 7176), (3588, 5932), (4449, 4784)]