21404625

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{5189}}^1$

素因数の和:5218

約数の個数: 32

約数和(自身を含む): 38862720

約数和(自身を除く): 17458095

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 275, 375, 825, 1375, 4125, 5189, 15567, 25945, 57079, 77835, 129725, 171237, 285395, 389175, 648625, 856185, 1426975, 1945875, 4280925, 7134875, 21404625]

約数ペア:

[(1, 21404625), (3, 7134875), (5, 4280925), (11, 1945875), (15, 1426975), (25, 856185), (33, 648625), (55, 389175), (75, 285395), (125, 171237), (165, 129725), (275, 77835), (375, 57079), (825, 25945), (1375, 15567), (4125, 5189)]