81691806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1945043}}^1$

素因数の和:1945055

約数の個数: 16

約数和(自身を含む): 186724224

約数和(自身を除く): 105032418

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1945043, 3890086, 5835129, 11670258, 13615301, 27230602, 40845903, 81691806]

約数ペア:

[(1, 81691806), (2, 40845903), (3, 27230602), (6, 13615301), (7, 11670258), (14, 5835129), (21, 3890086), (42, 1945043)]