21147608

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{373}}^2$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 41850900

約数和(自身を除く): 20703292

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 373, 746, 1492, 2984, 7087, 14174, 28348, 56696, 139129, 278258, 556516, 1113032, 2643451, 5286902, 10573804, 21147608]

約数ペア:

[(1, 21147608), (2, 10573804), (4, 5286902), (8, 2643451), (19, 1113032), (38, 556516), (76, 278258), (152, 139129), (373, 56696), (746, 28348), (1492, 14174), (2984, 7087)]