21351195

素因数分解:

$3^5\times 5^1\times {\mathrm{17573}}^1$

素因数の和:17593

約数の個数: 24

約数和(自身を含む): 38381616

約数和(自身を除く): 17030421

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 17573, 52719, 87865, 158157, 263595, 474471, 790785, 1423413, 2372355, 4270239, 7117065, 21351195]

約数ペア:

[(1, 21351195), (3, 7117065), (5, 4270239), (9, 2372355), (15, 1423413), (27, 790785), (45, 474471), (81, 263595), (135, 158157), (243, 87865), (405, 52719), (1215, 17573)]