401025261

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{209851}}^1$

素因数の和:209881

約数の個数: 24

約数和(自身を含む): 669847584

約数和(自身を除く): 268822323

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 209851, 629553, 1468957, 2728063, 4406871, 8184189, 10282699, 19096441, 30848097, 57289323, 133675087, 401025261]

約数ペア:

[(1, 401025261), (3, 133675087), (7, 57289323), (13, 30848097), (21, 19096441), (39, 10282699), (49, 8184189), (91, 4406871), (147, 2728063), (273, 1468957), (637, 629553), (1911, 209851)]