81723195

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16361}}^1$

素因数の和:16412

約数の個数: 32

約数和(自身を含む): 149221440

約数和(自身を除く): 67498245

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 16361, 49083, 81805, 147249, 245415, 441747, 605357, 736245, 1816071, 2208735, 3026785, 5448213, 9080355, 16344639, 27241065, 81723195]

約数ペア:

[(1, 81723195), (3, 27241065), (5, 16344639), (9, 9080355), (15, 5448213), (27, 3026785), (37, 2208735), (45, 1816071), (111, 736245), (135, 605357), (185, 441747), (333, 245415), (555, 147249), (999, 81805), (1665, 49083), (4995, 16361)]