18757821

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{1997}}^1$

素因数の和:2132

約数の個数: 16

約数和(自身を含む): 26085888

約数和(自身を除く): 7328067

約数列:

[1, 3, 31, 93, 101, 303, 1997, 3131, 5991, 9393, 61907, 185721, 201697, 605091, 6252607, 18757821]

約数ペア:

[(1, 18757821), (3, 6252607), (31, 605091), (93, 201697), (101, 185721), (303, 61907), (1997, 9393), (3131, 5991)]