20963409

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{523}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 28975104

約数和(自身を除く): 8011695

約数列:

[1, 3, 31, 93, 431, 523, 1293, 1569, 13361, 16213, 40083, 48639, 225413, 676239, 6987803, 20963409]

約数ペア:

[(1, 20963409), (3, 6987803), (31, 676239), (93, 225413), (431, 48639), (523, 40083), (1293, 16213), (1569, 13361)]