20403856249

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{239333}}^1$

素因数の和:240000

約数の個数: 16

約数和(自身を含む): 24584388480

約数和(自身を除く): 4180532231

約数列:

[1, 7, 19, 133, 641, 4487, 12179, 85253, 239333, 1675331, 4547327, 31831289, 153412453, 1073887171, 2914836607, 20403856249]

約数ペア:

[(1, 20403856249), (7, 2914836607), (19, 1073887171), (133, 153412453), (641, 31831289), (4487, 4547327), (12179, 1675331), (85253, 239333)]