20291217415

素因数分解:

$5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{2155201}}^1$

素因数の和:2155482

約数の個数: 16

約数和(自身を含む): 27931417920

約数和(自身を除く): 7640200505

約数列:

[1, 5, 7, 35, 269, 1345, 1883, 9415, 2155201, 10776005, 15086407, 75432035, 579749069, 2898745345, 4058243483, 20291217415]

約数ペア:

[(1, 20291217415), (5, 4058243483), (7, 2898745345), (35, 579749069), (269, 75432035), (1345, 15086407), (1883, 10776005), (9415, 2155201)]