21303819

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1061}}^1$

素因数の和:1187

約数の個数: 24

約数和(自身を含む): 32471712

約数和(自身を除く): 11167893

約数列:

[1, 3, 9, 23, 69, 97, 207, 291, 873, 1061, 2231, 3183, 6693, 9549, 20079, 24403, 73209, 102917, 219627, 308751, 926253, 2367091, 7101273, 21303819]

約数ペア:

[(1, 21303819), (3, 7101273), (9, 2367091), (23, 926253), (69, 308751), (97, 219627), (207, 102917), (291, 73209), (873, 24403), (1061, 20079), (2231, 9549), (3183, 6693)]