21477953

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1787}}^1$

素因数の和:1912

約数の個数: 16

約数和(自身を含む): 26262144

約数和(自身を除く): 4784191

約数列:

[1, 7, 17, 101, 119, 707, 1717, 1787, 12019, 12509, 30379, 180487, 212653, 1263409, 3068279, 21477953]

約数ペア:

[(1, 21477953), (7, 3068279), (17, 1263409), (101, 212653), (119, 180487), (707, 30379), (1717, 12509), (1787, 12019)]