81520026

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{277279}}^1$

素因数の和:277298

約数の個数: 24

約数和(自身を含む): 189659520

約数和(自身を除く): 108139494

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 277279, 554558, 831837, 1663674, 1940953, 3881906, 5822859, 11645718, 13586671, 27173342, 40760013, 81520026]

約数ペア:

[(1, 81520026), (2, 40760013), (3, 27173342), (6, 13586671), (7, 11645718), (14, 5822859), (21, 3881906), (42, 1940953), (49, 1663674), (98, 831837), (147, 554558), (294, 277279)]