21360009

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{163}}^1$

素因数の和:226

約数の個数: 36

約数和(自身を含む): 33241488

約数和(自身を除く): 11881479

約数列:

[1, 3, 11, 19, 33, 57, 121, 163, 209, 361, 363, 489, 627, 1083, 1793, 2299, 3097, 3971, 5379, 6897, 9291, 11913, 19723, 34067, 43681, 58843, 59169, 102201, 131043, 176529, 374737, 647273, 1124211, 1941819, 7120003, 21360009]

約数ペア:

[(1, 21360009), (3, 7120003), (11, 1941819), (19, 1124211), (33, 647273), (57, 374737), (121, 176529), (163, 131043), (209, 102201), (361, 59169), (363, 58843), (489, 43681), (627, 34067), (1083, 19723), (1793, 11913), (2299, 9291), (3097, 6897), (3971, 5379)]