16159905

素因数分解:

$3^4\times 5^1\times {\mathrm{39901}}^1$

素因数の和:39918

約数の個数: 20

約数和(自身を含む): 28968852

約数和(自身を除く): 12808947

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 39901, 119703, 199505, 359109, 598515, 1077327, 1795545, 3231981, 5386635, 16159905]

約数ペア:

[(1, 16159905), (3, 5386635), (5, 3231981), (9, 1795545), (15, 1077327), (27, 598515), (45, 359109), (81, 199505), (135, 119703), (405, 39901)]