21484665

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3041}}^1$

素因数の和:3209

約数の個数: 24

約数和(自身を含む): 37489608

約数和(自身を除く): 16004943

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 2355, 3041, 7065, 9123, 15205, 27369, 45615, 136845, 477437, 1432311, 2387185, 4296933, 7161555, 21484665]

約数ペア:

[(1, 21484665), (3, 7161555), (5, 4296933), (9, 2387185), (15, 1432311), (45, 477437), (157, 136845), (471, 45615), (785, 27369), (1413, 15205), (2355, 9123), (3041, 7065)]