21578256

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21407}}^1$

素因数の和:21428

約数の個数: 60

約数和(自身を含む): 69019392

約数和(自身を除く): 47441136

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 21407, 42814, 64221, 85628, 128442, 149849, 171256, 192663, 256884, 299698, 342512, 385326, 449547, 513768, 599396, 770652, 899094, 1027536, 1198792, 1348641, 1541304, 1798188, 2397584, 2697282, 3082608, 3596376, 5394564, 7192752, 10789128, 21578256]

約数ペア:

[(1, 21578256), (2, 10789128), (3, 7192752), (4, 5394564), (6, 3596376), (7, 3082608), (8, 2697282), (9, 2397584), (12, 1798188), (14, 1541304), (16, 1348641), (18, 1198792), (21, 1027536), (24, 899094), (28, 770652), (36, 599396), (42, 513768), (48, 449547), (56, 385326), (63, 342512), (72, 299698), (84, 256884), (112, 192663), (126, 171256), (144, 149849), (168, 128442), (252, 85628), (336, 64221), (504, 42814), (1008, 21407)]