21000201664

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25240627}}^1$

素因数の和:25240652

約数の個数: 28

約数和(自身を含む): 44877836584

約数和(自身を除く): 23877634920

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25240627, 50481254, 100962508, 201925016, 328128151, 403850032, 656256302, 807700064, 1312512604, 1615400128, 2625025208, 5250050416, 10500100832, 21000201664]

約数ペア:

[(1, 21000201664), (2, 10500100832), (4, 5250050416), (8, 2625025208), (13, 1615400128), (16, 1312512604), (26, 807700064), (32, 656256302), (52, 403850032), (64, 328128151), (104, 201925016), (208, 100962508), (416, 50481254), (832, 25240627)]