28198737

素因数分解:

$3^2\times 7^1\times {\mathrm{379}}^1\times {\mathrm{1181}}^1$

素因数の和:1573

約数の個数: 24

約数和(自身を含む): 46712640

約数和(自身を除く): 18513903

約数列:

[1, 3, 7, 9, 21, 63, 379, 1137, 1181, 2653, 3411, 3543, 7959, 8267, 10629, 23877, 24801, 74403, 447599, 1342797, 3133193, 4028391, 9399579, 28198737]

約数ペア:

[(1, 28198737), (3, 9399579), (7, 4028391), (9, 3133193), (21, 1342797), (63, 447599), (379, 74403), (1137, 24801), (1181, 23877), (2653, 10629), (3411, 8267), (3543, 7959)]