20451565

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{487}}^1$

素因数の和:756

約数の個数: 16

約数和(自身を含む): 25368192

約数和(自身を除く): 4916627

約数列:

[1, 5, 37, 185, 227, 487, 1135, 2435, 8399, 18019, 41995, 90095, 110549, 552745, 4090313, 20451565]

約数ペア:

[(1, 20451565), (5, 4090313), (37, 552745), (185, 110549), (227, 90095), (487, 41995), (1135, 18019), (2435, 8399)]