21270045

素因数分解:

$3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3467}}^1$

素因数の和:3884

約数の個数: 16

約数和(自身を含む): 34125120

約数和(自身を除く): 12855075

約数列:

[1, 3, 5, 15, 409, 1227, 2045, 3467, 6135, 10401, 17335, 52005, 1418003, 4254009, 7090015, 21270045]

約数ペア:

[(1, 21270045), (3, 7090015), (5, 4254009), (15, 1418003), (409, 52005), (1227, 17335), (2045, 10401), (3467, 6135)]