21593776

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{2423}}^1$

素因数の和:2988

約数の個数: 20

約数和(自身を含む): 41930352

約数和(自身を除く): 20336576

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 2423, 4456, 4846, 8912, 9692, 19384, 38768, 1349611, 2699222, 5398444, 10796888, 21593776]

約数ペア:

[(1, 21593776), (2, 10796888), (4, 5398444), (8, 2699222), (16, 1349611), (557, 38768), (1114, 19384), (2228, 9692), (2423, 8912), (4456, 4846)]