18678156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1214

約数の個数: 48

約数和(自身を含む): 50077440

約数和(自身を除く): 31399284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 229, 458, 687, 916, 971, 1374, 1603, 1942, 2748, 2913, 3206, 3884, 4809, 5826, 6412, 6797, 9618, 11652, 13594, 19236, 20391, 27188, 40782, 81564, 222359, 444718, 667077, 889436, 1334154, 1556513, 2668308, 3113026, 4669539, 6226052, 9339078, 18678156]

約数ペア:

[(1, 18678156), (2, 9339078), (3, 6226052), (4, 4669539), (6, 3113026), (7, 2668308), (12, 1556513), (14, 1334154), (21, 889436), (28, 667077), (42, 444718), (84, 222359), (229, 81564), (458, 40782), (687, 27188), (916, 20391), (971, 19236), (1374, 13594), (1603, 11652), (1942, 9618), (2748, 6797), (2913, 6412), (3206, 5826), (3884, 4809)]