21155427

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{44351}}^1$

素因数の和:44410

約数の個数: 12

約数和(自身を含む): 31135104

約数和(自身を除く): 9979677

約数列:

[1, 3, 9, 53, 159, 477, 44351, 133053, 399159, 2350603, 7051809, 21155427]

約数ペア:

[(1, 21155427), (3, 7051809), (9, 2350603), (53, 399159), (159, 133053), (477, 44351)]