19939570

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40693}}^1$

素因数の和:40714

約数の個数: 24

約数和(自身を含む): 41752044

約数和(自身を除く): 21812474

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40693, 81386, 203465, 284851, 406930, 569702, 1424255, 1993957, 2848510, 3987914, 9969785, 19939570]

約数ペア:

[(1, 19939570), (2, 9969785), (5, 3987914), (7, 2848510), (10, 1993957), (14, 1424255), (35, 569702), (49, 406930), (70, 284851), (98, 203465), (245, 81386), (490, 40693)]