21526275

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12479}}^1$

素因数の和:12515

約数の個数: 24

約数和(自身を含む): 37140480

約数和(自身を除く): 15614205

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12479, 37437, 62395, 187185, 287017, 311975, 861051, 935925, 1435085, 4305255, 7175425, 21526275]

約数ペア:

[(1, 21526275), (3, 7175425), (5, 4305255), (15, 1435085), (23, 935925), (25, 861051), (69, 311975), (75, 287017), (115, 187185), (345, 62395), (575, 37437), (1725, 12479)]