20107756965

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{245471}}^1$

素因数の和:245649

約数の個数: 32

約数和(自身を含む): 33179959296

約数和(自身を除く): 13072202331

約数列:

[1, 3, 5, 15, 43, 127, 129, 215, 381, 635, 645, 1905, 5461, 16383, 27305, 81915, 245471, 736413, 1227355, 3682065, 10555253, 31174817, 31665759, 52776265, 93524451, 155874085, 158328795, 467622255, 1340517131, 4021551393, 6702585655, 20107756965]

約数ペア:

[(1, 20107756965), (3, 6702585655), (5, 4021551393), (15, 1340517131), (43, 467622255), (127, 158328795), (129, 155874085), (215, 93524451), (381, 52776265), (635, 31665759), (645, 31174817), (1905, 10555253), (5461, 3682065), (16383, 1227355), (27305, 736413), (81915, 245471)]