15911427

素因数分解:

$3^1\times 7^4\times {\mathrm{47}}^2$

素因数の和:125

約数の個数: 30

約数和(自身を含む): 25287428

約数和(自身を除く): 9376001

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 343, 987, 1029, 2209, 2303, 2401, 6627, 6909, 7203, 15463, 16121, 46389, 48363, 108241, 112847, 324723, 338541, 757687, 2273061, 5303809, 15911427]

約数ペア:

[(1, 15911427), (3, 5303809), (7, 2273061), (21, 757687), (47, 338541), (49, 324723), (141, 112847), (147, 108241), (329, 48363), (343, 46389), (987, 16121), (1029, 15463), (2209, 7203), (2303, 6909), (2401, 6627)]