21622185

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1607}}^1$

素因数の和:1654

約数の個数: 48

約数和(自身を含む): 42142464

約数和(自身を除く): 20520279

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 1607, 2691, 4485, 4821, 8035, 13455, 14463, 20891, 24105, 36961, 62673, 72315, 104455, 110883, 184805, 188019, 313365, 332649, 480493, 554415, 940095, 1441479, 1663245, 2402465, 4324437, 7207395, 21622185]

約数ペア:

[(1, 21622185), (3, 7207395), (5, 4324437), (9, 2402465), (13, 1663245), (15, 1441479), (23, 940095), (39, 554415), (45, 480493), (65, 332649), (69, 313365), (115, 188019), (117, 184805), (195, 110883), (207, 104455), (299, 72315), (345, 62673), (585, 36961), (897, 24105), (1035, 20891), (1495, 14463), (1607, 13455), (2691, 8035), (4485, 4821)]