28207989

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{563}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 43112160

約数和(自身を除く): 14904171

約数列:

[1, 3, 9, 19, 57, 171, 293, 563, 879, 1689, 2637, 5067, 5567, 10697, 16701, 32091, 50103, 96273, 164959, 494877, 1484631, 3134221, 9402663, 28207989]

約数ペア:

[(1, 28207989), (3, 9402663), (9, 3134221), (19, 1484631), (57, 494877), (171, 164959), (293, 96273), (563, 50103), (879, 32091), (1689, 16701), (2637, 10697), (5067, 5567)]