20494355

素因数分解:

$5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{2557}}^1$

素因数の和:2798

約数の個数: 16

約数和(自身を含む): 28240320

約数和(自身を除く): 7745965

約数列:

[1, 5, 7, 35, 229, 1145, 1603, 2557, 8015, 12785, 17899, 89495, 585553, 2927765, 4098871, 20494355]

約数ペア:

[(1, 20494355), (5, 4098871), (7, 2927765), (35, 585553), (229, 89495), (1145, 17899), (1603, 12785), (2557, 8015)]