81691554

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{3719}}^1$

素因数の和:4254

約数の個数: 32

約数和(自身を含む): 187130880

約数和(自身を除く): 105439326

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 523, 1046, 1569, 3138, 3661, 3719, 7322, 7438, 10983, 11157, 21966, 22314, 26033, 52066, 78099, 156198, 1945037, 3890074, 5835111, 11670222, 13615259, 27230518, 40845777, 81691554]

約数ペア:

[(1, 81691554), (2, 40845777), (3, 27230518), (6, 13615259), (7, 11670222), (14, 5835111), (21, 3890074), (42, 1945037), (523, 156198), (1046, 78099), (1569, 52066), (3138, 26033), (3661, 22314), (3719, 21966), (7322, 11157), (7438, 10983)]