19897826

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14696734

約数列:

[1, 2, 13, 19, 26, 38, 47, 94, 247, 494, 611, 857, 893, 1222, 1714, 1786, 11141, 11609, 16283, 22282, 23218, 32566, 40279, 80558, 211679, 423358, 523627, 765301, 1047254, 1530602, 9948913, 19897826]

約数ペア:

[(1, 19897826), (2, 9948913), (13, 1530602), (19, 1047254), (26, 765301), (38, 523627), (47, 423358), (94, 211679), (247, 80558), (494, 40279), (611, 32566), (857, 23218), (893, 22282), (1222, 16283), (1714, 11609), (1786, 11141)]