19985535

素因数分解:

$3^6\times 5^1\times {\mathrm{5483}}^1$

素因数の和:5506

約数の個数: 28

約数和(自身を含む): 35964072

約数和(自身を除く): 15978537

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5483, 16449, 27415, 49347, 82245, 148041, 246735, 444123, 740205, 1332369, 2220615, 3997107, 6661845, 19985535]

約数ペア:

[(1, 19985535), (3, 6661845), (5, 3997107), (9, 2220615), (15, 1332369), (27, 740205), (45, 444123), (81, 246735), (135, 148041), (243, 82245), (405, 49347), (729, 27415), (1215, 16449), (3645, 5483)]