21107583

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2124

約数の個数: 36

約数和(自身を含む): 37026288

約数和(自身を除く): 15918705

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2081, 3381, 6243, 10143, 14567, 18729, 43701, 47863, 101969, 131103, 143589, 305907, 335041, 430767, 917721, 1005123, 2345287, 3015369, 7035861, 21107583]

約数ペア:

[(1, 21107583), (3, 7035861), (7, 3015369), (9, 2345287), (21, 1005123), (23, 917721), (49, 430767), (63, 335041), (69, 305907), (147, 143589), (161, 131103), (207, 101969), (441, 47863), (483, 43701), (1127, 18729), (1449, 14567), (2081, 10143), (3381, 6243)]