21910251

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{4397}}^1$

素因数の和:4562

約数の個数: 16

約数和(自身を含む): 32087808

約数和(自身を除く): 10177557

約数列:

[1, 3, 11, 33, 151, 453, 1661, 4397, 4983, 13191, 48367, 145101, 663947, 1991841, 7303417, 21910251]

約数ペア:

[(1, 21910251), (3, 7303417), (11, 1991841), (33, 663947), (151, 145101), (453, 48367), (1661, 13191), (4397, 4983)]