28260981

素因数分解:

$3^4\times 7^1\times {\mathrm{49843}}^1$

素因数の和:49862

約数の個数: 20

約数和(自身を含む): 48248992

約数和(自身を除く): 19988011

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49843, 149529, 348901, 448587, 1046703, 1345761, 3140109, 4037283, 9420327, 28260981]

約数ペア:

[(1, 28260981), (3, 9420327), (7, 4037283), (9, 3140109), (21, 1345761), (27, 1046703), (63, 448587), (81, 348901), (189, 149529), (567, 49843)]