21884181

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{167}}^1$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 34052256

約数和(自身を除く): 12168075

約数列:

[1, 3, 11, 19, 33, 57, 121, 167, 209, 361, 363, 501, 627, 1083, 1837, 2299, 3173, 3971, 5511, 6897, 9519, 11913, 20207, 34903, 43681, 60287, 60621, 104709, 131043, 180861, 383933, 663157, 1151799, 1989471, 7294727, 21884181]

約数ペア:

[(1, 21884181), (3, 7294727), (11, 1989471), (19, 1151799), (33, 663157), (57, 383933), (121, 180861), (167, 131043), (209, 104709), (361, 60621), (363, 60287), (501, 43681), (627, 34903), (1083, 20207), (1837, 11913), (2299, 9519), (3173, 6897), (3971, 5511)]