10989475

素因数分解:

$5^2\times 7^2\times {\mathrm{8971}}^1$

素因数の和:8995

約数の個数: 18

約数和(自身を含む): 15853524

約数和(自身を除く): 4864049

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 8971, 44855, 62797, 224275, 313985, 439579, 1569925, 2197895, 10989475]

約数ペア:

[(1, 10989475), (5, 2197895), (7, 1569925), (25, 439579), (35, 313985), (49, 224275), (175, 62797), (245, 44855), (1225, 8971)]