18927238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{4973}}^1$

素因数の和:5159

約数の個数: 16

約数和(自身を含む): 31157136

約数和(自身を除く): 12229898

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 4973, 9946, 54703, 109406, 860329, 1720658, 9463619, 18927238]

約数ペア:

[(1, 18927238), (2, 9463619), (11, 1720658), (22, 860329), (173, 109406), (346, 54703), (1903, 9946), (3806, 4973)]