20824685

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 29728512

約数和(自身を除く): 8903827

約数列:

[1, 5, 7, 35, 43, 101, 137, 215, 301, 505, 685, 707, 959, 1505, 3535, 4343, 4795, 5891, 13837, 21715, 29455, 30401, 41237, 69185, 96859, 152005, 206185, 484295, 594991, 2974955, 4164937, 20824685]

約数ペア:

[(1, 20824685), (5, 4164937), (7, 2974955), (35, 594991), (43, 484295), (101, 206185), (137, 152005), (215, 96859), (301, 69185), (505, 41237), (685, 30401), (707, 29455), (959, 21715), (1505, 13837), (3535, 5891), (4343, 4795)]