19421420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51109}}^1$

素因数の和:51137

約数の個数: 24

約数和(自身を含む): 42932400

約数和(自身を除く): 23510980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51109, 102218, 204436, 255545, 511090, 971071, 1022180, 1942142, 3884284, 4855355, 9710710, 19421420]

約数ペア:

[(1, 19421420), (2, 9710710), (4, 4855355), (5, 3884284), (10, 1942142), (19, 1022180), (20, 971071), (38, 511090), (76, 255545), (95, 204436), (190, 102218), (380, 51109)]