21530486887

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{71849}}^1$

素因数の和:71995

約数の個数: 32

約数和(自身を含む): 27521424000

約数和(自身を除く): 5990937113

約数列:

[1, 7, 13, 37, 89, 91, 259, 481, 623, 1157, 3293, 3367, 8099, 23051, 42809, 71849, 299663, 502943, 934037, 2658413, 6394561, 6538259, 18608891, 34559369, 44761927, 83129293, 236598757, 241915583, 581905051, 1656191299, 3075783841, 21530486887]

約数ペア:

[(1, 21530486887), (7, 3075783841), (13, 1656191299), (37, 581905051), (89, 241915583), (91, 236598757), (259, 83129293), (481, 44761927), (623, 34559369), (1157, 18608891), (3293, 6538259), (3367, 6394561), (8099, 2658413), (23051, 934037), (42809, 502943), (71849, 299663)]