21671312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2423}}^1$

素因数の和:2487

約数の個数: 40

約数和(自身を含む): 46288704

約数和(自身を除く): 24617392

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 2423, 4472, 4846, 8944, 9692, 19384, 31499, 38768, 62998, 104189, 125996, 208378, 251992, 416756, 503984, 833512, 1354457, 1667024, 2708914, 5417828, 10835656, 21671312]

約数ペア:

[(1, 21671312), (2, 10835656), (4, 5417828), (8, 2708914), (13, 1667024), (16, 1354457), (26, 833512), (43, 503984), (52, 416756), (86, 251992), (104, 208378), (172, 125996), (208, 104189), (344, 62998), (559, 38768), (688, 31499), (1118, 19384), (2236, 9692), (2423, 8944), (4472, 4846)]