18688528

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{40277}}^1$

素因数の和:40314

約数の個数: 20

約数和(自身を含む): 37458540

約数和(自身を除く): 18770012

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 40277, 80554, 161108, 322216, 644432, 1168033, 2336066, 4672132, 9344264, 18688528]

約数ペア:

[(1, 18688528), (2, 9344264), (4, 4672132), (8, 2336066), (16, 1168033), (29, 644432), (58, 322216), (116, 161108), (232, 80554), (464, 40277)]