28919457

素因数分解:

$3^3\times 7^2\times {\mathrm{21859}}^1$

素因数の和:21882

約数の個数: 24

約数和(自身を含む): 49840800

約数和(自身を除く): 20921343

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21859, 65577, 153013, 196731, 459039, 590193, 1071091, 1377117, 3213273, 4131351, 9639819, 28919457]

約数ペア:

[(1, 28919457), (3, 9639819), (7, 4131351), (9, 3213273), (21, 1377117), (27, 1071091), (49, 590193), (63, 459039), (147, 196731), (189, 153013), (441, 65577), (1323, 21859)]