27921615

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{547}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 46400256

約数和(自身を除く): 18478641

約数列:

[1, 3, 5, 15, 41, 83, 123, 205, 249, 415, 547, 615, 1245, 1641, 2735, 3403, 8205, 10209, 17015, 22427, 45401, 51045, 67281, 112135, 136203, 227005, 336405, 681015, 1861441, 5584323, 9307205, 27921615]

約数ペア:

[(1, 27921615), (3, 9307205), (5, 5584323), (15, 1861441), (41, 681015), (83, 336405), (123, 227005), (205, 136203), (249, 112135), (415, 67281), (547, 51045), (615, 45401), (1245, 22427), (1641, 17015), (2735, 10209), (3403, 8205)]