20212029

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{6221}}^1$

素因数の和:6265

約数の個数: 18

約数和(自身を含む): 30817566

約数和(自身を除く): 10605537

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 6221, 18663, 55989, 118199, 354597, 1063791, 2245781, 6737343, 20212029]

約数ペア:

[(1, 20212029), (3, 6737343), (9, 2245781), (19, 1063791), (57, 354597), (171, 118199), (361, 55989), (1083, 18663), (3249, 6221)]