28909251

素因数分解:

$3^3\times 7^1\times {\mathrm{152959}}^1$

素因数の和:152975

約数の個数: 16

約数和(自身を含む): 48947200

約数和(自身を除く): 20037949

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 152959, 458877, 1070713, 1376631, 3212139, 4129893, 9636417, 28909251]

約数ペア:

[(1, 28909251), (3, 9636417), (7, 4129893), (9, 3212139), (21, 1376631), (27, 1070713), (63, 458877), (189, 152959)]