16920891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4987}}^1$

素因数の和:5035

約数の個数: 24

約数和(自身を含む): 27234480

約数和(自身を除く): 10313589

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 4987, 14961, 44883, 64831, 144623, 194493, 433869, 583479, 1301607, 1880099, 5640297, 16920891]

約数ペア:

[(1, 16920891), (3, 5640297), (9, 1880099), (13, 1301607), (29, 583479), (39, 433869), (87, 194493), (117, 144623), (261, 64831), (377, 44883), (1131, 14961), (3393, 4987)]