21796568

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51407}}^1$

素因数の和:51466

約数の個数: 16

約数和(自身を含む): 41640480

約数和(自身を除く): 19843912

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51407, 102814, 205628, 411256, 2724571, 5449142, 10898284, 21796568]

約数ペア:

[(1, 21796568), (2, 10898284), (4, 5449142), (8, 2724571), (53, 411256), (106, 205628), (212, 102814), (424, 51407)]