20597895

素因数分解:

$3^6\times 5^1\times {\mathrm{5651}}^1$

素因数の和:5674

約数の個数: 28

約数和(自身を含む): 37065816

約数和(自身を除く): 16467921

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5651, 16953, 28255, 50859, 84765, 152577, 254295, 457731, 762885, 1373193, 2288655, 4119579, 6865965, 20597895]

約数ペア:

[(1, 20597895), (3, 6865965), (5, 4119579), (9, 2288655), (15, 1373193), (27, 762885), (45, 457731), (81, 254295), (135, 152577), (243, 84765), (405, 50859), (729, 28255), (1215, 16953), (3645, 5651)]