19972603

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3571}}^1$

素因数の和:3642

約数の個数: 16

約数和(自身を含む): 24689664

約数和(自身を除く): 4717061

約数列:

[1, 7, 17, 47, 119, 329, 799, 3571, 5593, 24997, 60707, 167837, 424949, 1174859, 2853229, 19972603]

約数ペア:

[(1, 19972603), (7, 2853229), (17, 1174859), (47, 424949), (119, 167837), (329, 60707), (799, 24997), (3571, 5593)]