19797715

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4253}}^1$

素因数の和:4291

約数の個数: 24

約数和(自身を含む): 29097360

約数和(自身を除く): 9299645

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4253, 4655, 21265, 29771, 80807, 148855, 208397, 404035, 565649, 1041985, 2828245, 3959543, 19797715]

約数ペア:

[(1, 19797715), (5, 3959543), (7, 2828245), (19, 1041985), (35, 565649), (49, 404035), (95, 208397), (133, 148855), (245, 80807), (665, 29771), (931, 21265), (4253, 4655)]