15615243

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3491}}^1$

素因数の和:3575

約数の個数: 24

約数和(自身を含む): 26148096

約数和(自身を除く): 10532853

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 3491, 4473, 10473, 24437, 31419, 73311, 219933, 247861, 743583, 1735027, 2230749, 5205081, 15615243]

約数ペア:

[(1, 15615243), (3, 5205081), (7, 2230749), (9, 1735027), (21, 743583), (63, 247861), (71, 219933), (213, 73311), (497, 31419), (639, 24437), (1491, 10473), (3491, 4473)]