31908891

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21401}}^1$

素因数の和:21482

約数の個数: 16

約数和(自身を含む): 49310208

約数和(自身を除く): 17401317

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 21401, 64203, 149807, 449421, 1519471, 4558413, 10636297, 31908891]

約数ペア:

[(1, 31908891), (3, 10636297), (7, 4558413), (21, 1519471), (71, 449421), (213, 149807), (497, 64203), (1491, 21401)]