20919095

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12953}}^1$

素因数の和:12994

約数の個数: 16

約数和(自身を含む): 27980640

約数和(自身を除く): 7061545

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 12953, 64765, 220201, 246107, 1101005, 1230535, 4183819, 20919095]

約数ペア:

[(1, 20919095), (5, 4183819), (17, 1230535), (19, 1101005), (85, 246107), (95, 220201), (323, 64765), (1615, 12953)]