18656385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 34601280

約数和(自身を除く): 15944895

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 121, 165, 209, 285, 363, 541, 605, 627, 1045, 1623, 1815, 2299, 2705, 3135, 5951, 6897, 8115, 10279, 11495, 17853, 29755, 30837, 34485, 51395, 65461, 89265, 113069, 154185, 196383, 327305, 339207, 565345, 981915, 1243759, 1696035, 3731277, 6218795, 18656385]

約数ペア:

[(1, 18656385), (3, 6218795), (5, 3731277), (11, 1696035), (15, 1243759), (19, 981915), (33, 565345), (55, 339207), (57, 327305), (95, 196383), (121, 154185), (165, 113069), (209, 89265), (285, 65461), (363, 51395), (541, 34485), (605, 30837), (627, 29755), (1045, 17853), (1623, 11495), (1815, 10279), (2299, 8115), (2705, 6897), (3135, 5951)]