28284417

素因数分解:

$3^3\times 7^2\times {\mathrm{21379}}^1$

素因数の和:21402

約数の個数: 24

約数和(自身を含む): 48746400

約数和(自身を除く): 20461983

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21379, 64137, 149653, 192411, 448959, 577233, 1047571, 1346877, 3142713, 4040631, 9428139, 28284417]

約数ペア:

[(1, 28284417), (3, 9428139), (7, 4040631), (9, 3142713), (21, 1346877), (27, 1047571), (49, 577233), (63, 448959), (147, 192411), (189, 149653), (441, 64137), (1323, 21379)]