21791373

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{1009}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 30445440

約数和(自身を除く): 8654067

約数列:

[1, 3, 23, 69, 313, 939, 1009, 3027, 7199, 21597, 23207, 69621, 315817, 947451, 7263791, 21791373]

約数ペア:

[(1, 21791373), (3, 7263791), (23, 947451), (69, 315817), (313, 69621), (939, 23207), (1009, 21597), (3027, 7199)]