12979925

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4363}}^1$

素因数の和:4397

約数の個数: 24

約数和(自身を含む): 19480896

約数和(自身を除く): 6500971

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 4363, 21815, 30541, 74171, 109075, 152705, 370855, 519197, 763525, 1854275, 2595985, 12979925]

約数ペア:

[(1, 12979925), (5, 2595985), (7, 1854275), (17, 763525), (25, 519197), (35, 370855), (85, 152705), (119, 109075), (175, 74171), (425, 30541), (595, 21815), (2975, 4363)]