19702544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64811}}^1$

素因数の和:64838

約数の個数: 20

約数和(自身を含む): 40183440

約数和(自身を除く): 20480896

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64811, 129622, 259244, 518488, 1036976, 1231409, 2462818, 4925636, 9851272, 19702544]

約数ペア:

[(1, 19702544), (2, 9851272), (4, 4925636), (8, 2462818), (16, 1231409), (19, 1036976), (38, 518488), (76, 259244), (152, 129622), (304, 64811)]