21512674

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{1153}}^1$

素因数の和:1665

約数の個数: 16

約数和(自身を含む): 34066080

約数和(自身を除く): 12553406

約数列:

[1, 2, 19, 38, 491, 982, 1153, 2306, 9329, 18658, 21907, 43814, 566123, 1132246, 10756337, 21512674]

約数ペア:

[(1, 21512674), (2, 10756337), (19, 1132246), (38, 566123), (491, 43814), (982, 21907), (1153, 18658), (2306, 9329)]