18968390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38711}}^1$

素因数の和:38732

約数の個数: 24

約数和(自身を含む): 39718512

約数和(自身を除く): 20750122

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38711, 77422, 193555, 270977, 387110, 541954, 1354885, 1896839, 2709770, 3793678, 9484195, 18968390]

約数ペア:

[(1, 18968390), (2, 9484195), (5, 3793678), (7, 2709770), (10, 1896839), (14, 1354885), (35, 541954), (49, 387110), (70, 270977), (98, 193555), (245, 77422), (490, 38711)]