13001989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 18063360

約数和(自身を除く): 5061371

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 419, 1001, 2387, 2821, 2933, 4433, 4609, 5447, 12989, 31031, 32263, 38129, 59917, 90923, 142879, 168857, 419419, 1000153, 1181999, 1857427, 13001989]

約数ペア:

[(1, 13001989), (7, 1857427), (11, 1181999), (13, 1000153), (31, 419419), (77, 168857), (91, 142879), (143, 90923), (217, 59917), (341, 38129), (403, 32263), (419, 31031), (1001, 12989), (2387, 5447), (2821, 4609), (2933, 4433)]