21492405

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 42819840

約数和(自身を除く): 21327435

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 41, 45, 55, 99, 123, 135, 165, 205, 297, 353, 369, 451, 495, 615, 1059, 1107, 1353, 1485, 1765, 1845, 2255, 3177, 3883, 4059, 5295, 5535, 6765, 9531, 11649, 12177, 14473, 15885, 19415, 20295, 34947, 43419, 47655, 58245, 60885, 72365, 104841, 130257, 159203, 174735, 217095, 390771, 477609, 524205, 651285, 796015, 1432827, 1953855, 2388045, 4298481, 7164135, 21492405]

約数ペア:

[(1, 21492405), (3, 7164135), (5, 4298481), (9, 2388045), (11, 1953855), (15, 1432827), (27, 796015), (33, 651285), (41, 524205), (45, 477609), (55, 390771), (99, 217095), (123, 174735), (135, 159203), (165, 130257), (205, 104841), (297, 72365), (353, 60885), (369, 58245), (451, 47655), (495, 43419), (615, 34947), (1059, 20295), (1107, 19415), (1353, 15885), (1485, 14473), (1765, 12177), (1845, 11649), (2255, 9531), (3177, 6765), (3883, 5535), (4059, 5295)]