21237999

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:598

約数の個数: 16

約数和(自身を含む): 28775424

約数和(自身を除く): 7537425

約数列:

[1, 3, 151, 173, 271, 453, 519, 813, 26123, 40921, 46883, 78369, 122763, 140649, 7079333, 21237999]

約数ペア:

[(1, 21237999), (3, 7079333), (151, 140649), (173, 122763), (271, 78369), (453, 46883), (519, 40921), (813, 26123)]