18185715

素因数分解:

$3^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{541}}^1$

素因数の和:641

約数の個数: 40

約数和(自身を含む): 33053328

約数和(自身を除く): 14867613

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 83, 135, 249, 405, 415, 541, 747, 1245, 1623, 2241, 2705, 3735, 4869, 6723, 8115, 11205, 14607, 24345, 33615, 43821, 44903, 73035, 134709, 219105, 224515, 404127, 673545, 1212381, 2020635, 3637143, 6061905, 18185715]

約数ペア:

[(1, 18185715), (3, 6061905), (5, 3637143), (9, 2020635), (15, 1212381), (27, 673545), (45, 404127), (81, 224515), (83, 219105), (135, 134709), (249, 73035), (405, 44903), (415, 43821), (541, 33615), (747, 24345), (1245, 14607), (1623, 11205), (2241, 8115), (2705, 6723), (3735, 4869)]