81986926

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{42131}}^1$

素因数の和:42279

約数の個数: 16

約数和(自身を含む): 141563520

約数和(自身を除く): 59576594

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 42131, 84262, 294917, 589834, 5856209, 11712418, 40993463, 81986926]

約数ペア:

[(1, 81986926), (2, 40993463), (7, 11712418), (14, 5856209), (139, 589834), (278, 294917), (973, 84262), (1946, 42131)]