21972470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{169019}}^1$

素因数の和:169039

約数の個数: 16

約数和(自身を含む): 42593040

約数和(自身を除く): 20620570

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169019, 338038, 845095, 1690190, 2197247, 4394494, 10986235, 21972470]

約数ペア:

[(1, 21972470), (2, 10986235), (5, 4394494), (10, 2197247), (13, 1690190), (26, 845095), (65, 338038), (130, 169019)]