21198924

素因数分解:

$2^2\times 3^2\times {\mathrm{347}}^1\times {\mathrm{1697}}^1$

素因数の和:2054

約数の個数: 36

約数和(自身を含む): 53772264

約数和(自身を除く): 32573340

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 347, 694, 1041, 1388, 1697, 2082, 3123, 3394, 4164, 5091, 6246, 6788, 10182, 12492, 15273, 20364, 30546, 61092, 588859, 1177718, 1766577, 2355436, 3533154, 5299731, 7066308, 10599462, 21198924]

約数ペア:

[(1, 21198924), (2, 10599462), (3, 7066308), (4, 5299731), (6, 3533154), (9, 2355436), (12, 1766577), (18, 1177718), (36, 588859), (347, 61092), (694, 30546), (1041, 20364), (1388, 15273), (1697, 12492), (2082, 10182), (3123, 6788), (3394, 6246), (4164, 5091)]