42021005

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{223}}^2$

素因数の和:477

約数の個数: 18

約数和(自身を含む): 54848394

約数和(自身を除く): 12827389

約数列:

[1, 5, 13, 65, 169, 223, 845, 1115, 2899, 14495, 37687, 49729, 188435, 248645, 646477, 3232385, 8404201, 42021005]

約数ペア:

[(1, 42021005), (5, 8404201), (13, 3232385), (65, 646477), (169, 248645), (223, 188435), (845, 49729), (1115, 37687), (2899, 14495)]