21031917

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1873}}^1$

素因数の和:2092

約数の個数: 16

約数和(自身を含む): 29684160

約数和(自身を除く): 8652243

約数列:

[1, 3, 19, 57, 197, 591, 1873, 3743, 5619, 11229, 35587, 106761, 368981, 1106943, 7010639, 21031917]

約数ペア:

[(1, 21031917), (3, 7010639), (19, 1106943), (57, 368981), (197, 106761), (591, 35587), (1873, 11229), (3743, 5619)]