19673885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 29728512

約数和(自身を除く): 10054627

約数列:

[1, 5, 7, 11, 35, 55, 77, 137, 373, 385, 685, 959, 1507, 1865, 2611, 4103, 4795, 7535, 10549, 13055, 20515, 28721, 51101, 52745, 143605, 255505, 357707, 562111, 1788535, 2810555, 3934777, 19673885]

約数ペア:

[(1, 19673885), (5, 3934777), (7, 2810555), (11, 1788535), (35, 562111), (55, 357707), (77, 255505), (137, 143605), (373, 52745), (385, 51101), (685, 28721), (959, 20515), (1507, 13055), (1865, 10549), (2611, 7535), (4103, 4795)]