21427128

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2141}}^1$

素因数の和:2292

約数の個数: 48

約数和(自身を含む): 58476600

約数和(自身を除く): 37049472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2141, 2502, 3336, 4282, 5004, 6423, 8564, 10008, 12846, 17128, 19269, 25692, 38538, 51384, 77076, 154152, 297599, 595198, 892797, 1190396, 1785594, 2380792, 2678391, 3571188, 5356782, 7142376, 10713564, 21427128]

約数ペア:

[(1, 21427128), (2, 10713564), (3, 7142376), (4, 5356782), (6, 3571188), (8, 2678391), (9, 2380792), (12, 1785594), (18, 1190396), (24, 892797), (36, 595198), (72, 297599), (139, 154152), (278, 77076), (417, 51384), (556, 38538), (834, 25692), (1112, 19269), (1251, 17128), (1668, 12846), (2141, 10008), (2502, 8564), (3336, 6423), (4282, 5004)]