21718894

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{1301}}^1$

素因数の和:1811

約数の個数: 16

約数和(自身を含む): 34591536

約数和(自身を除く): 12872642

約数列:

[1, 2, 17, 34, 491, 982, 1301, 2602, 8347, 16694, 22117, 44234, 638791, 1277582, 10859447, 21718894]

約数ペア:

[(1, 21718894), (2, 10859447), (17, 1277582), (34, 638791), (491, 44234), (982, 22117), (1301, 16694), (2602, 8347)]