20537145

素因数分解:

$3^5\times 5^1\times {\mathrm{16903}}^1$

素因数の和:16923

約数の個数: 24

約数和(自身を含む): 36918336

約数和(自身を除く): 16381191

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16903, 50709, 84515, 152127, 253545, 456381, 760635, 1369143, 2281905, 4107429, 6845715, 20537145]

約数ペア:

[(1, 20537145), (3, 6845715), (5, 4107429), (9, 2281905), (15, 1369143), (27, 760635), (45, 456381), (81, 253545), (135, 152127), (243, 84515), (405, 50709), (1215, 16903)]