18943875

素因数分解:

$3^4\times 5^3\times {\mathrm{1871}}^1$

素因数の和:1898

約数の個数: 40

約数和(自身を含む): 35335872

約数和(自身を除く): 16391997

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 1871, 2025, 3375, 5613, 9355, 10125, 16839, 28065, 46775, 50517, 84195, 140325, 151551, 233875, 252585, 420975, 701625, 757755, 1262925, 2104875, 3788775, 6314625, 18943875]

約数ペア:

[(1, 18943875), (3, 6314625), (5, 3788775), (9, 2104875), (15, 1262925), (25, 757755), (27, 701625), (45, 420975), (75, 252585), (81, 233875), (125, 151551), (135, 140325), (225, 84195), (375, 50517), (405, 46775), (675, 28065), (1125, 16839), (1871, 10125), (2025, 9355), (3375, 5613)]