18783819

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5393}}^1$

素因数の和:5448

約数の個数: 20

約数和(自身を含む): 28717656

約数和(自身を除く): 9933837

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5393, 16179, 48537, 145611, 231899, 436833, 695697, 2087091, 6261273, 18783819]

約数ペア:

[(1, 18783819), (3, 6261273), (9, 2087091), (27, 695697), (43, 436833), (81, 231899), (129, 145611), (387, 48537), (1161, 16179), (3483, 5393)]