19909465

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{3299}}^1$

素因数の和:3392

約数の個数: 16

約数和(自身を含む): 25660800

約数和(自身を除く): 5751335

約数列:

[1, 5, 17, 71, 85, 355, 1207, 3299, 6035, 16495, 56083, 234229, 280415, 1171145, 3981893, 19909465]

約数ペア:

[(1, 19909465), (5, 3981893), (17, 1171145), (71, 280415), (85, 234229), (355, 56083), (1207, 16495), (3299, 6035)]