20679876

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{599}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 60278400

約数和(自身を除く): 39598524

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 548, 599, 822, 959, 1198, 1233, 1644, 1797, 1918, 2396, 2466, 2877, 3594, 3836, 4193, 4932, 5391, 5754, 7188, 8386, 8631, 10782, 11508, 12579, 16772, 17262, 21564, 25158, 34524, 37737, 50316, 75474, 82063, 150948, 164126, 246189, 328252, 492378, 574441, 738567, 984756, 1148882, 1477134, 1723323, 2297764, 2954268, 3446646, 5169969, 6893292, 10339938, 20679876]

約数ペア:

[(1, 20679876), (2, 10339938), (3, 6893292), (4, 5169969), (6, 3446646), (7, 2954268), (9, 2297764), (12, 1723323), (14, 1477134), (18, 1148882), (21, 984756), (28, 738567), (36, 574441), (42, 492378), (63, 328252), (84, 246189), (126, 164126), (137, 150948), (252, 82063), (274, 75474), (411, 50316), (548, 37737), (599, 34524), (822, 25158), (959, 21564), (1198, 17262), (1233, 16772), (1644, 12579), (1797, 11508), (1918, 10782), (2396, 8631), (2466, 8386), (2877, 7188), (3594, 5754), (3836, 5391), (4193, 4932)]