21000508

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5827}}^1$

素因数の和:5901

約数の個数: 24

約数和(自身を含む): 39653712

約数和(自身を除く): 18653204

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5827, 11654, 23308, 99059, 198118, 308831, 396236, 617662, 1235324, 5250127, 10500254, 21000508]

約数ペア:

[(1, 21000508), (2, 10500254), (4, 5250127), (17, 1235324), (34, 617662), (53, 396236), (68, 308831), (106, 198118), (212, 99059), (901, 23308), (1802, 11654), (3604, 5827)]