21021908607

素因数分解:

$3^2\times 7^2\times {\mathrm{8839}}^1\times {\mathrm{5393}}^1$

素因数の和:14252

約数の個数: 36

約数和(自身を含む): 35333073360

約数和(自身を除く): 14311164753

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 5393, 8839, 16179, 26517, 37751, 48537, 61873, 79551, 113253, 185619, 264257, 339759, 433111, 556857, 792771, 1299333, 2378313, 3897999, 47668727, 143006181, 333681089, 429018543, 1001043267, 2335767623, 3003129801, 7007302869, 21021908607]

約数ペア:

[(1, 21021908607), (3, 7007302869), (7, 3003129801), (9, 2335767623), (21, 1001043267), (49, 429018543), (63, 333681089), (147, 143006181), (441, 47668727), (5393, 3897999), (8839, 2378313), (16179, 1299333), (26517, 792771), (37751, 556857), (48537, 433111), (61873, 339759), (79551, 264257), (113253, 185619)]