20119645

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6317}}^1$

素因数の和:6349

約数の個数: 24

約数和(自身を含む): 30250584

約数和(自身を除く): 10130939

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6317, 31585, 44219, 82121, 221095, 309533, 410605, 574847, 1547665, 2874235, 4023929, 20119645]

約数ペア:

[(1, 20119645), (5, 4023929), (7, 2874235), (13, 1547665), (35, 574847), (49, 410605), (65, 309533), (91, 221095), (245, 82121), (455, 44219), (637, 31585), (3185, 6317)]