18991676

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{39239}}^1$

素因数の和:39265

約数の個数: 18

約数和(自身を含む): 36532440

約数和(自身を除く): 17540764

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 39239, 78478, 156956, 431629, 863258, 1726516, 4747919, 9495838, 18991676]

約数ペア:

[(1, 18991676), (2, 9495838), (4, 4747919), (11, 1726516), (22, 863258), (44, 431629), (121, 156956), (242, 78478), (484, 39239)]