21938995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1951}}^1$

素因数の和:2142

約数の個数: 16

約数和(自身を含む): 28530432

約数和(自身を除く): 6591437

約数列:

[1, 5, 13, 65, 173, 865, 1951, 2249, 9755, 11245, 25363, 126815, 337523, 1687615, 4387799, 21938995]

約数ペア:

[(1, 21938995), (5, 4387799), (13, 1687615), (65, 337523), (173, 126815), (865, 25363), (1951, 11245), (2249, 9755)]