21274786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{379}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 15497054

約数列:

[1, 2, 13, 17, 26, 34, 127, 221, 254, 379, 442, 758, 1651, 2159, 3302, 4318, 4927, 6443, 9854, 12886, 28067, 48133, 56134, 83759, 96266, 167518, 625729, 818261, 1251458, 1636522, 10637393, 21274786]

約数ペア:

[(1, 21274786), (2, 10637393), (13, 1636522), (17, 1251458), (26, 818261), (34, 625729), (127, 167518), (221, 96266), (254, 83759), (379, 56134), (442, 48133), (758, 28067), (1651, 12886), (2159, 9854), (3302, 6443), (4318, 4927)]