21574718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2521}}^1$

素因数の和:2923

約数の個数: 16

約数和(自身を含む): 35408880

約数和(自身を除く): 13834162

約数列:

[1, 2, 11, 22, 389, 778, 2521, 4279, 5042, 8558, 27731, 55462, 980669, 1961338, 10787359, 21574718]

約数ペア:

[(1, 21574718), (2, 10787359), (11, 1961338), (22, 980669), (389, 55462), (778, 27731), (2521, 8558), (4279, 5042)]