18736875

素因数分解:

$3^2\times 5^4\times {\mathrm{3331}}^1$

素因数の和:3357

約数の個数: 30

約数和(自身を含む): 33829796

約数和(自身を除く): 15092921

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3331, 5625, 9993, 16655, 29979, 49965, 83275, 149895, 249825, 416375, 749475, 1249125, 2081875, 3747375, 6245625, 18736875]

約数ペア:

[(1, 18736875), (3, 6245625), (5, 3747375), (9, 2081875), (15, 1249125), (25, 749475), (45, 416375), (75, 249825), (125, 149895), (225, 83275), (375, 49965), (625, 29979), (1125, 16655), (1875, 9993), (3331, 5625)]