21502875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3373}}^1$

素因数の和:3408

約数の個数: 32

約数和(自身を含む): 37896768

約数和(自身を除く): 16393893

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3373, 6375, 10119, 16865, 50595, 57341, 84325, 172023, 252975, 286705, 421625, 860115, 1264875, 1433525, 4300575, 7167625, 21502875]

約数ペア:

[(1, 21502875), (3, 7167625), (5, 4300575), (15, 1433525), (17, 1264875), (25, 860115), (51, 421625), (75, 286705), (85, 252975), (125, 172023), (255, 84325), (375, 57341), (425, 50595), (1275, 16865), (2125, 10119), (3373, 6375)]