20118231

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1621}}^1$

素因数の和:1831

約数の個数: 24

約数和(自身を含む): 33400224

約数和(自身を除く): 13281993

約数列:

[1, 3, 7, 9, 21, 63, 197, 591, 1379, 1621, 1773, 4137, 4863, 11347, 12411, 14589, 34041, 102123, 319337, 958011, 2235359, 2874033, 6706077, 20118231]

約数ペア:

[(1, 20118231), (3, 6706077), (7, 2874033), (9, 2235359), (21, 958011), (63, 319337), (197, 102123), (591, 34041), (1379, 14589), (1621, 12411), (1773, 11347), (4137, 4863)]