17781296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{85487}}^1$

素因数の和:85508

約数の個数: 20

約数和(自身を含む): 37101792

約数和(自身を除く): 19320496

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 85487, 170974, 341948, 683896, 1111331, 1367792, 2222662, 4445324, 8890648, 17781296]

約数ペア:

[(1, 17781296), (2, 8890648), (4, 4445324), (8, 2222662), (13, 1367792), (16, 1111331), (26, 683896), (52, 341948), (104, 170974), (208, 85487)]