21478568

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 41407200

約数和(自身を除く): 19928632

約数列:

[1, 2, 4, 8, 53, 106, 179, 212, 283, 358, 424, 566, 716, 1132, 1432, 2264, 9487, 14999, 18974, 29998, 37948, 50657, 59996, 75896, 101314, 119992, 202628, 405256, 2684821, 5369642, 10739284, 21478568]

約数ペア:

[(1, 21478568), (2, 10739284), (4, 5369642), (8, 2684821), (53, 405256), (106, 202628), (179, 119992), (212, 101314), (283, 75896), (358, 59996), (424, 50657), (566, 37948), (716, 29998), (1132, 18974), (1432, 14999), (2264, 9487)]