18977156

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{39209}}^1$

素因数の和:39235

約数の個数: 18

約数和(自身を含む): 36504510

約数和(自身を除く): 17527354

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 39209, 78418, 156836, 431299, 862598, 1725196, 4744289, 9488578, 18977156]

約数ペア:

[(1, 18977156), (2, 9488578), (4, 4744289), (11, 1725196), (22, 862598), (44, 431299), (121, 156836), (242, 78418), (484, 39209)]