81263686

素因数分解:

$2^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{21419}}^1$

素因数の和:21699

約数の個数: 16

約数和(自身を含む): 139829760

約数和(自身を除く): 58566074

約数列:

[1, 2, 7, 14, 271, 542, 1897, 3794, 21419, 42838, 149933, 299866, 5804549, 11609098, 40631843, 81263686]

約数ペア:

[(1, 81263686), (2, 40631843), (7, 11609098), (14, 5804549), (271, 299866), (542, 149933), (1897, 42838), (3794, 21419)]