21297417

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 28929600

約数和(自身を除く): 7632183

約数列:

[1, 3, 97, 163, 291, 449, 489, 1347, 15811, 43553, 47433, 73187, 130659, 219561, 7099139, 21297417]

約数ペア:

[(1, 21297417), (3, 7099139), (97, 219561), (163, 130659), (291, 73187), (449, 47433), (489, 43553), (1347, 15811)]