28319918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67751}}^1$

素因数の和:67783

約数の個数: 16

約数和(自身を含む): 48781440

約数和(自身を除く): 20461522

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 67751, 135502, 745261, 1287269, 1490522, 2574538, 14159959, 28319918]

約数ペア:

[(1, 28319918), (2, 14159959), (11, 2574538), (19, 1490522), (22, 1287269), (38, 745261), (209, 135502), (418, 67751)]