21921653

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 25156656

約数和(自身を除く): 3235003

約数列:

[1, 13, 17, 221, 281, 353, 3653, 4589, 4777, 6001, 62101, 78013, 99193, 1289509, 1686281, 21921653]

約数ペア:

[(1, 21921653), (13, 1686281), (17, 1289509), (221, 99193), (281, 78013), (353, 62101), (3653, 6001), (4589, 4777)]