19966761

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{677}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 30143880

約数和(自身を除く): 10177119

約数列:

[1, 3, 9, 29, 87, 113, 261, 339, 677, 1017, 2031, 3277, 6093, 9831, 19633, 29493, 58899, 76501, 176697, 229503, 688509, 2218529, 6655587, 19966761]

約数ペア:

[(1, 19966761), (3, 6655587), (9, 2218529), (29, 688509), (87, 229503), (113, 176697), (261, 76501), (339, 58899), (677, 29493), (1017, 19633), (2031, 9831), (3277, 6093)]