20217812405

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{686863}}^1$

素因数の和:686933

約数の個数: 24

約数和(自身を含む): 28716410112

約数和(自身を除く): 8498597707

約数列:

[1, 5, 7, 29, 35, 145, 203, 841, 1015, 4205, 5887, 29435, 686863, 3434315, 4808041, 19919027, 24040205, 99595135, 139433189, 577651783, 697165945, 2888258915, 4043562481, 20217812405]

約数ペア:

[(1, 20217812405), (5, 4043562481), (7, 2888258915), (29, 697165945), (35, 577651783), (145, 139433189), (203, 99595135), (841, 24040205), (1015, 19919027), (4205, 4808041), (5887, 3434315), (29435, 686863)]