19378964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{440431}}^1$

素因数の和:440446

約数の個数: 12

約数和(自身を含む): 36996288

約数和(自身を除く): 17617324

約数列:

[1, 2, 4, 11, 22, 44, 440431, 880862, 1761724, 4844741, 9689482, 19378964]

約数ペア:

[(1, 19378964), (2, 9689482), (4, 4844741), (11, 1761724), (22, 880862), (44, 440431)]