21093037065

素因数分解:

$3^4\times 5^1\times {\mathrm{52081573}}^1$

素因数の和:52081590

約数の個数: 20

約数和(自身を含む): 37811222724

約数和(自身を除く): 16718185659

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 52081573, 156244719, 260407865, 468734157, 781223595, 1406202471, 2343670785, 4218607413, 7031012355, 21093037065]

約数ペア:

[(1, 21093037065), (3, 7031012355), (5, 4218607413), (9, 2343670785), (15, 1406202471), (27, 781223595), (45, 468734157), (81, 260407865), (135, 156244719), (405, 52081573)]