21982665

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20641}}^1$

素因数の和:20720

約数の個数: 16

約数和(自身を含む): 35669376

約数和(自身を除く): 13686711

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 20641, 61923, 103205, 309615, 1465511, 4396533, 7327555, 21982665]

約数ペア:

[(1, 21982665), (3, 7327555), (5, 4396533), (15, 1465511), (71, 309615), (213, 103205), (355, 61923), (1065, 20641)]