19811666

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 35389440

約数和(自身を除く): 15577774

約数列:

[1, 2, 7, 14, 31, 62, 191, 217, 239, 382, 434, 478, 1337, 1673, 2674, 3346, 5921, 7409, 11842, 14818, 41447, 45649, 51863, 82894, 91298, 103726, 319543, 639086, 1415119, 2830238, 9905833, 19811666]

約数ペア:

[(1, 19811666), (2, 9905833), (7, 2830238), (14, 1415119), (31, 639086), (62, 319543), (191, 103726), (217, 91298), (239, 82894), (382, 51863), (434, 45649), (478, 41447), (1337, 14818), (1673, 11842), (2674, 7409), (3346, 5921)]