21231951

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1091}}^1$

素因数の和:1606

約数の個数: 16

約数和(自身を含む): 30576000

約数和(自身を除く): 9344049

約数列:

[1, 3, 13, 39, 499, 1091, 1497, 3273, 6487, 14183, 19461, 42549, 544409, 1633227, 7077317, 21231951]

約数ペア:

[(1, 21231951), (3, 7077317), (13, 1633227), (39, 544409), (499, 42549), (1091, 19461), (1497, 14183), (3273, 6487)]