21531332

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{577}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 39812640

約数和(自身を除く): 18281308

約数列:

[1, 2, 4, 19, 38, 76, 491, 577, 982, 1154, 1964, 2308, 9329, 10963, 18658, 21926, 37316, 43852, 283307, 566614, 1133228, 5382833, 10765666, 21531332]

約数ペア:

[(1, 21531332), (2, 10765666), (4, 5382833), (19, 1133228), (38, 566614), (76, 283307), (491, 43852), (577, 37316), (982, 21926), (1154, 18658), (1964, 10963), (2308, 9329)]