15287139

素因数分解:

$3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{563}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 25339392

約数和(自身を除く): 10052253

約数列:

[1, 3, 7, 9, 21, 63, 431, 563, 1293, 1689, 3017, 3879, 3941, 5067, 9051, 11823, 27153, 35469, 242653, 727959, 1698571, 2183877, 5095713, 15287139]

約数ペア:

[(1, 15287139), (3, 5095713), (7, 2183877), (9, 1698571), (21, 727959), (63, 242653), (431, 35469), (563, 27153), (1293, 11823), (1689, 9051), (3017, 5067), (3879, 3941)]