18220635

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2579}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 31795920

約数和(自身を除く): 13575285

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 2355, 2579, 7065, 7737, 12895, 23211, 38685, 116055, 404903, 1214709, 2024515, 3644127, 6073545, 18220635]

約数ペア:

[(1, 18220635), (3, 6073545), (5, 3644127), (9, 2024515), (15, 1214709), (45, 404903), (157, 116055), (471, 38685), (785, 23211), (1413, 12895), (2355, 7737), (2579, 7065)]