21087170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162209}}^1$

素因数の和:162229

約数の個数: 16

約数和(自身を含む): 40876920

約数和(自身を除く): 19789750

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 162209, 324418, 811045, 1622090, 2108717, 4217434, 10543585, 21087170]

約数ペア:

[(1, 21087170), (2, 10543585), (5, 4217434), (10, 2108717), (13, 1622090), (26, 811045), (65, 324418), (130, 162209)]