156716721

素因数分解:

$3^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{4793}}^1$

素因数の和:4982

約数の個数: 32

約数和(自身を含む): 266929920

約数和(自身を除く): 110213199

約数列:

[1, 3, 7, 9, 21, 27, 63, 173, 189, 519, 1211, 1557, 3633, 4671, 4793, 10899, 14379, 32697, 33551, 43137, 100653, 129411, 301959, 829189, 905877, 2487567, 5804323, 7462701, 17412969, 22388103, 52238907, 156716721]

約数ペア:

[(1, 156716721), (3, 52238907), (7, 22388103), (9, 17412969), (21, 7462701), (27, 5804323), (63, 2487567), (173, 905877), (189, 829189), (519, 301959), (1211, 129411), (1557, 100653), (3633, 43137), (4671, 33551), (4793, 32697), (10899, 14379)]