19945276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12373}}^1$

素因数の和:12421

約数の個数: 24

約数和(自身を含む): 38804864

約数和(自身を除く): 18859588

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12373, 24746, 49492, 160849, 321698, 383563, 643396, 767126, 1534252, 4986319, 9972638, 19945276]

約数ペア:

[(1, 19945276), (2, 9972638), (4, 4986319), (13, 1534252), (26, 767126), (31, 643396), (52, 383563), (62, 321698), (124, 160849), (403, 49492), (806, 24746), (1612, 12373)]