19912467

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{631}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 27160832

約数和(自身を除く): 7248365

約数列:

[1, 3, 67, 157, 201, 471, 631, 1893, 10519, 31557, 42277, 99067, 126831, 297201, 6637489, 19912467]

約数ペア:

[(1, 19912467), (3, 6637489), (67, 297201), (157, 126831), (201, 99067), (471, 42277), (631, 31557), (1893, 10519)]