18913303325

素因数分解:

$5^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{285161}}^1$

素因数の和:285557

約数の個数: 24

約数和(自身を含む): 26873666880

約数和(自身を除く): 7960363555

約数列:

[1, 5, 7, 25, 35, 175, 379, 1895, 2653, 9475, 13265, 66325, 285161, 1425805, 1996127, 7129025, 9980635, 49903175, 108076019, 540380095, 756532133, 2701900475, 3782660665, 18913303325]

約数ペア:

[(1, 18913303325), (5, 3782660665), (7, 2701900475), (25, 756532133), (35, 540380095), (175, 108076019), (379, 49903175), (1895, 9980635), (2653, 7129025), (9475, 1996127), (13265, 1425805), (66325, 285161)]