28262415

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{809}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 48288960

約数和(自身を除く): 20026545

約数列:

[1, 3, 5, 15, 17, 51, 85, 137, 255, 411, 685, 809, 2055, 2329, 2427, 4045, 6987, 11645, 12135, 13753, 34935, 41259, 68765, 110833, 206295, 332499, 554165, 1662495, 1884161, 5652483, 9420805, 28262415]

約数ペア:

[(1, 28262415), (3, 9420805), (5, 5652483), (15, 1884161), (17, 1662495), (51, 554165), (85, 332499), (137, 206295), (255, 110833), (411, 68765), (685, 41259), (809, 34935), (2055, 13753), (2329, 12135), (2427, 11645), (4045, 6987)]