21027495

素因数分解:

$3^1\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1373}}^1$

素因数の和:2402

約数の個数: 16

約数和(自身を含む): 33701472

約数和(自身を除く): 12673977

約数列:

[1, 3, 5, 15, 1021, 1373, 3063, 4119, 5105, 6865, 15315, 20595, 1401833, 4205499, 7009165, 21027495]

約数ペア:

[(1, 21027495), (3, 7009165), (5, 4205499), (15, 1401833), (1021, 20595), (1373, 15315), (3063, 6865), (4119, 5105)]