2988381

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 4385088

約数和(自身を除く): 1396707

約数列:

[1, 3, 11, 33, 137, 411, 661, 1507, 1983, 4521, 7271, 21813, 90557, 271671, 996127, 2988381]

約数ペア:

[(1, 2988381), (3, 996127), (11, 271671), (33, 90557), (137, 21813), (411, 7271), (661, 4521), (1507, 1983)]