21471825

素因数分解:

$3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{4273}}^1$

素因数の和:4353

約数の個数: 24

約数和(自身を含む): 36038368

約数和(自身を除く): 14566543

約数列:

[1, 3, 5, 15, 25, 67, 75, 201, 335, 1005, 1675, 4273, 5025, 12819, 21365, 64095, 106825, 286291, 320475, 858873, 1431455, 4294365, 7157275, 21471825]

約数ペア:

[(1, 21471825), (3, 7157275), (5, 4294365), (15, 1431455), (25, 858873), (67, 320475), (75, 286291), (201, 106825), (335, 64095), (1005, 21365), (1675, 12819), (4273, 5025)]