19662965

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4721}}^1$

素因数の和:4757

約数の個数: 24

約数和(自身を含む): 29068632

約数和(自身を除く): 9405667

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 4721, 23605, 33047, 80257, 165235, 231329, 401285, 561799, 1156645, 2808995, 3932593, 19662965]

約数ペア:

[(1, 19662965), (5, 3932593), (7, 2808995), (17, 1156645), (35, 561799), (49, 401285), (85, 231329), (119, 165235), (245, 80257), (595, 33047), (833, 23605), (4165, 4721)]