15780947

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^2$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 20770848

約数和(自身を除く): 4989901

約数列:

[1, 7, 13, 17, 91, 101, 119, 221, 707, 1313, 1547, 1717, 9191, 10201, 12019, 22321, 71407, 132613, 156247, 173417, 928291, 1213919, 2254421, 15780947]

約数ペア:

[(1, 15780947), (7, 2254421), (13, 1213919), (17, 928291), (91, 173417), (101, 156247), (119, 132613), (221, 71407), (707, 22321), (1313, 12019), (1547, 10201), (1717, 9191)]