19969257

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 33490944

約数和(自身を除く): 13521687

約数列:

[1, 3, 7, 11, 21, 33, 77, 137, 231, 411, 631, 959, 1507, 1893, 2877, 4417, 4521, 6941, 10549, 13251, 20823, 31647, 48587, 86447, 145761, 259341, 605129, 950917, 1815387, 2852751, 6656419, 19969257]

約数ペア:

[(1, 19969257), (3, 6656419), (7, 2852751), (11, 1815387), (21, 950917), (33, 605129), (77, 259341), (137, 145761), (231, 86447), (411, 48587), (631, 31647), (959, 20823), (1507, 13251), (1893, 10549), (2877, 6941), (4417, 4521)]