81690126

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1945003}}^1$

素因数の和:1945015

約数の個数: 16

約数和(自身を含む): 186720384

約数和(自身を除く): 105030258

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1945003, 3890006, 5835009, 11670018, 13615021, 27230042, 40845063, 81690126]

約数ペア:

[(1, 81690126), (2, 40845063), (3, 27230042), (6, 13615021), (7, 11670018), (14, 5835009), (21, 3890006), (42, 1945003)]