21068878

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{4229}}^1$

素因数の和:4331

約数の個数: 16

約数和(自身を含む): 32892480

約数和(自身を除く): 11823602

約数列:

[1, 2, 47, 53, 94, 106, 2491, 4229, 4982, 8458, 198763, 224137, 397526, 448274, 10534439, 21068878]

約数ペア:

[(1, 21068878), (2, 10534439), (47, 448274), (53, 397526), (94, 224137), (106, 198763), (2491, 8458), (4229, 4982)]