19894472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{821}}^1$

素因数の和:1073

約数の個数: 32

約数和(自身を含む): 40393080

約数和(自身を除く): 20498608

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 233, 466, 821, 932, 1642, 1864, 3029, 3284, 6058, 6568, 10673, 12116, 21346, 24232, 42692, 85384, 191293, 382586, 765172, 1530344, 2486809, 4973618, 9947236, 19894472]

約数ペア:

[(1, 19894472), (2, 9947236), (4, 4973618), (8, 2486809), (13, 1530344), (26, 765172), (52, 382586), (104, 191293), (233, 85384), (466, 42692), (821, 24232), (932, 21346), (1642, 12116), (1864, 10673), (3029, 6568), (3284, 6058)]