17989868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{997}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 34035792

約数和(自身を除く): 16045924

約数列:

[1, 2, 4, 13, 26, 52, 347, 694, 997, 1388, 1994, 3988, 4511, 9022, 12961, 18044, 25922, 51844, 345959, 691918, 1383836, 4497467, 8994934, 17989868]

約数ペア:

[(1, 17989868), (2, 8994934), (4, 4497467), (13, 1383836), (26, 691918), (52, 345959), (347, 51844), (694, 25922), (997, 18044), (1388, 12961), (1994, 9022), (3988, 4511)]