4209989

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:440

約数の個数: 16

約数和(自身を含む): 5099520

約数和(自身を除く): 889531

約数列:

[1, 7, 23, 79, 161, 331, 553, 1817, 2317, 7613, 12719, 26149, 53291, 183043, 601427, 4209989]

約数ペア:

[(1, 4209989), (7, 601427), (23, 183043), (79, 53291), (161, 26149), (331, 12719), (553, 7613), (1817, 2317)]