399085778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{128987}}^1$

素因数の和:129026

約数の個数: 32

約数和(自身を含む): 780119424

約数和(自身を除く): 381033646

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 182, 221, 238, 442, 1547, 3094, 128987, 257974, 902909, 1676831, 1805818, 2192779, 3353662, 4385558, 11737817, 15349453, 23475634, 28506127, 30698906, 57012254, 199542889, 399085778]

約数ペア:

[(1, 399085778), (2, 199542889), (7, 57012254), (13, 30698906), (14, 28506127), (17, 23475634), (26, 15349453), (34, 11737817), (91, 4385558), (119, 3353662), (182, 2192779), (221, 1805818), (238, 1676831), (442, 902909), (1547, 257974), (3094, 128987)]