21000649672

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84680039}}^1$

素因数の和:84680076

約数の個数: 16

約数和(自身を含む): 40646419200

約数和(自身を除く): 19645769528

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84680039, 169360078, 338720156, 677440312, 2625081209, 5250162418, 10500324836, 21000649672]

約数ペア:

[(1, 21000649672), (2, 10500324836), (4, 5250162418), (8, 2625081209), (31, 677440312), (62, 338720156), (124, 169360078), (248, 84680039)]