21394570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112603}}^1$

素因数の和:112629

約数の個数: 16

約数和(自身を含む): 40537440

約数和(自身を除く): 19142870

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112603, 225206, 563015, 1126030, 2139457, 4278914, 10697285, 21394570]

約数ペア:

[(1, 21394570), (2, 10697285), (5, 4278914), (10, 2139457), (19, 1126030), (38, 563015), (95, 225206), (190, 112603)]