28196721

素因数分解:

$3^3\times 7^1\times {\mathrm{193}}^1\times {\mathrm{773}}^1$

素因数の和:982

約数の個数: 32

約数和(自身を含む): 48049920

約数和(自身を除く): 19853199

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 193, 579, 773, 1351, 1737, 2319, 4053, 5211, 5411, 6957, 12159, 16233, 20871, 36477, 48699, 146097, 149189, 447567, 1044323, 1342701, 3132969, 4028103, 9398907, 28196721]

約数ペア:

[(1, 28196721), (3, 9398907), (7, 4028103), (9, 3132969), (21, 1342701), (27, 1044323), (63, 447567), (189, 149189), (193, 146097), (579, 48699), (773, 36477), (1351, 20871), (1737, 16233), (2319, 12159), (4053, 6957), (5211, 5411)]