67821691

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{5477}}^1$

素因数の和:5574

約数の個数: 16

約数和(自身を含む): 81512640

約数和(自身を除く): 13690949

約数列:

[1, 7, 29, 61, 203, 427, 1769, 5477, 12383, 38339, 158833, 334097, 1111831, 2338679, 9688813, 67821691]

約数ペア:

[(1, 67821691), (7, 9688813), (29, 2338679), (61, 1111831), (203, 334097), (427, 158833), (1769, 38339), (5477, 12383)]