19581395

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4153}}^1$

素因数の和:4222

約数の個数: 16

約数和(自身を含む): 25123392

約数和(自身を除く): 5541997

約数列:

[1, 5, 23, 41, 115, 205, 943, 4153, 4715, 20765, 95519, 170273, 477595, 851365, 3916279, 19581395]

約数ペア:

[(1, 19581395), (5, 3916279), (23, 851365), (41, 477595), (115, 170273), (205, 95519), (943, 20765), (4153, 4715)]