20995665

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3203}}^1$

素因数の和:3253

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 15914415

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 3203, 6555, 9609, 16015, 48045, 60857, 73669, 182571, 221007, 304285, 368345, 912855, 1105035, 1399711, 4199133, 6998555, 20995665]

約数ペア:

[(1, 20995665), (3, 6998555), (5, 4199133), (15, 1399711), (19, 1105035), (23, 912855), (57, 368345), (69, 304285), (95, 221007), (115, 182571), (285, 73669), (345, 60857), (437, 48045), (1311, 16015), (2185, 9609), (3203, 6555)]