18009975

素因数分解:

$3^1\times 5^2\times {\mathrm{439}}^1\times {\mathrm{547}}^1$

素因数の和:999

約数の個数: 24

約数和(自身を含む): 29898880

約数和(自身を除く): 11888905

約数列:

[1, 3, 5, 15, 25, 75, 439, 547, 1317, 1641, 2195, 2735, 6585, 8205, 10975, 13675, 32925, 41025, 240133, 720399, 1200665, 3601995, 6003325, 18009975]

約数ペア:

[(1, 18009975), (3, 6003325), (5, 3601995), (15, 1200665), (25, 720399), (75, 240133), (439, 41025), (547, 32925), (1317, 13675), (1641, 10975), (2195, 8205), (2735, 6585)]