21351488

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 56

約数和(自身を含む): 44378880

約数和(自身を除く): 23027392

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 79, 82, 103, 158, 164, 206, 316, 328, 412, 632, 656, 824, 1264, 1312, 1648, 2528, 2624, 3239, 3296, 4223, 5056, 6478, 6592, 8137, 8446, 12956, 16274, 16892, 25912, 32548, 33784, 51824, 65096, 67568, 103648, 130192, 135136, 207296, 260384, 270272, 333617, 520768, 667234, 1334468, 2668936, 5337872, 10675744, 21351488]

約数ペア:

[(1, 21351488), (2, 10675744), (4, 5337872), (8, 2668936), (16, 1334468), (32, 667234), (41, 520768), (64, 333617), (79, 270272), (82, 260384), (103, 207296), (158, 135136), (164, 130192), (206, 103648), (316, 67568), (328, 65096), (412, 51824), (632, 33784), (656, 32548), (824, 25912), (1264, 16892), (1312, 16274), (1648, 12956), (2528, 8446), (2624, 8137), (3239, 6592), (3296, 6478), (4223, 5056)]