20397573

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2011}}^1$

素因数の和:2054

約数の個数: 36

約数和(自身を含む): 35781408

約数和(自身を除く): 15383835

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2011, 3381, 6033, 10143, 14077, 18099, 42231, 46253, 98539, 126693, 138759, 295617, 323771, 416277, 886851, 971313, 2266397, 2913939, 6799191, 20397573]

約数ペア:

[(1, 20397573), (3, 6799191), (7, 2913939), (9, 2266397), (21, 971313), (23, 886851), (49, 416277), (63, 323771), (69, 295617), (147, 138759), (161, 126693), (207, 98539), (441, 46253), (483, 42231), (1127, 18099), (1449, 14077), (2011, 10143), (3381, 6033)]