16920631

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 21488544

約数和(自身を除く): 4567913

約数列:

[1, 7, 13, 49, 91, 101, 263, 637, 707, 1313, 1841, 3419, 4949, 9191, 12887, 23933, 26563, 64337, 167531, 185941, 345319, 1301587, 2417233, 16920631]

約数ペア:

[(1, 16920631), (7, 2417233), (13, 1301587), (49, 345319), (91, 185941), (101, 167531), (263, 64337), (637, 26563), (707, 23933), (1313, 12887), (1841, 9191), (3419, 4949)]