20172645

素因数分解:

$3^5\times 5^1\times {\mathrm{16603}}^1$

素因数の和:16623

約数の個数: 24

約数和(自身を含む): 36263136

約数和(自身を除く): 16090491

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16603, 49809, 83015, 149427, 249045, 448281, 747135, 1344843, 2241405, 4034529, 6724215, 20172645]

約数ペア:

[(1, 20172645), (3, 6724215), (5, 4034529), (9, 2241405), (15, 1344843), (27, 747135), (45, 448281), (81, 249045), (135, 149427), (243, 83015), (405, 49809), (1215, 16603)]