20980899

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1283}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 32048640

約数和(自身を除く): 11067741

約数列:

[1, 3, 9, 23, 69, 79, 207, 237, 711, 1283, 1817, 3849, 5451, 11547, 16353, 29509, 88527, 101357, 265581, 304071, 912213, 2331211, 6993633, 20980899]

約数ペア:

[(1, 20980899), (3, 6993633), (9, 2331211), (23, 912213), (69, 304071), (79, 265581), (207, 101357), (237, 88527), (711, 29509), (1283, 16353), (1817, 11547), (3849, 5451)]