2891339

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 16

約数和(自身を含む): 3333120

約数和(自身を除く): 441781

約数列:

[1, 11, 31, 61, 139, 341, 671, 1529, 1891, 4309, 8479, 20801, 47399, 93269, 262849, 2891339]

約数ペア:

[(1, 2891339), (11, 262849), (31, 93269), (61, 47399), (139, 20801), (341, 8479), (671, 4309), (1529, 1891)]