21000916536

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8177927}}^1$

素因数の和:8178043

約数の個数: 32

約数和(自身を含む): 52992973440

約数和(自身を除く): 31992056904

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8177927, 16355854, 24533781, 32711708, 49067562, 65423416, 98135124, 196270248, 875038189, 1750076378, 2625114567, 3500152756, 5250229134, 7000305512, 10500458268, 21000916536]

約数ペア:

[(1, 21000916536), (2, 10500458268), (3, 7000305512), (4, 5250229134), (6, 3500152756), (8, 2625114567), (12, 1750076378), (24, 875038189), (107, 196270248), (214, 98135124), (321, 65423416), (428, 49067562), (642, 32711708), (856, 24533781), (1284, 16355854), (2568, 8177927)]