21257818

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{3833}}^1$

素因数の和:3941

約数の個数: 16

約数和(自身を含む): 33125760

約数和(自身を除く): 11867942

約数列:

[1, 2, 47, 59, 94, 118, 2773, 3833, 5546, 7666, 180151, 226147, 360302, 452294, 10628909, 21257818]

約数ペア:

[(1, 21257818), (2, 10628909), (47, 452294), (59, 360302), (94, 226147), (118, 180151), (2773, 7666), (3833, 5546)]