13208685

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17971}}^1$

素因数の和:17993

約数の個数: 24

約数和(自身を含む): 24585696

約数和(自身を除く): 11377011

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 17971, 53913, 89855, 125797, 269565, 377391, 628985, 880579, 1886955, 2641737, 4402895, 13208685]

約数ペア:

[(1, 13208685), (3, 4402895), (5, 2641737), (7, 1886955), (15, 880579), (21, 628985), (35, 377391), (49, 269565), (105, 125797), (147, 89855), (245, 53913), (735, 17971)]