21000587528

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{3023}}^1\times {\mathrm{5531}}^1$

素因数の和:8717

約数の個数: 32

約数和(自身を含む): 39647180160

約数和(自身を除く): 18646592632

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 3023, 5531, 6046, 11062, 12092, 22124, 24184, 44248, 474611, 868367, 949222, 1736734, 1898444, 3473468, 3796888, 6946936, 16720213, 33440426, 66880852, 133761704, 2625073441, 5250146882, 10500293764, 21000587528]

約数ペア:

[(1, 21000587528), (2, 10500293764), (4, 5250146882), (8, 2625073441), (157, 133761704), (314, 66880852), (628, 33440426), (1256, 16720213), (3023, 6946936), (5531, 3796888), (6046, 3473468), (11062, 1898444), (12092, 1736734), (22124, 949222), (24184, 868367), (44248, 474611)]