21857223

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{10453}}^1$

素因数の和:10514

約数の個数: 16

約数和(自身を含む): 31612896

約数和(自身を除く): 9755673

約数列:

[1, 3, 17, 41, 51, 123, 697, 2091, 10453, 31359, 177701, 428573, 533103, 1285719, 7285741, 21857223]

約数ペア:

[(1, 21857223), (3, 7285741), (17, 1285719), (41, 533103), (51, 428573), (123, 177701), (697, 31359), (2091, 10453)]