16954821

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 28828800

約数和(自身を除く): 11873979

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 87, 117, 171, 247, 261, 263, 377, 551, 741, 789, 1131, 1653, 2223, 2367, 3393, 3419, 4959, 4997, 7163, 7627, 10257, 14991, 21489, 22881, 30771, 44973, 64467, 64961, 68643, 99151, 144913, 194883, 297453, 434739, 584649, 892359, 1304217, 1883869, 5651607, 16954821]

約数ペア:

[(1, 16954821), (3, 5651607), (9, 1883869), (13, 1304217), (19, 892359), (29, 584649), (39, 434739), (57, 297453), (87, 194883), (117, 144913), (171, 99151), (247, 68643), (261, 64961), (263, 64467), (377, 44973), (551, 30771), (741, 22881), (789, 21489), (1131, 14991), (1653, 10257), (2223, 7627), (2367, 7163), (3393, 4997), (3419, 4959)]