16571420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43609}}^1$

素因数の和:43637

約数の個数: 24

約数和(自身を含む): 36632400

約数和(自身を除く): 20060980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 43609, 87218, 174436, 218045, 436090, 828571, 872180, 1657142, 3314284, 4142855, 8285710, 16571420]

約数ペア:

[(1, 16571420), (2, 8285710), (4, 4142855), (5, 3314284), (10, 1657142), (19, 872180), (20, 828571), (38, 436090), (76, 218045), (95, 174436), (190, 87218), (380, 43609)]