81513405

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16319}}^1$

素因数の和:16370

約数の個数: 32

約数和(自身を含む): 148838400

約数和(自身を除く): 67324995

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 16319, 48957, 81595, 146871, 244785, 440613, 603803, 734355, 1811409, 2203065, 3019015, 5434227, 9057045, 16302681, 27171135, 81513405]

約数ペア:

[(1, 81513405), (3, 27171135), (5, 16302681), (9, 9057045), (15, 5434227), (27, 3019015), (37, 2203065), (45, 1811409), (111, 734355), (135, 603803), (185, 440613), (333, 244785), (555, 146871), (999, 81595), (1665, 48957), (4995, 16319)]