21152403

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{138251}}^1$

素因数の和:138274

約数の個数: 12

約数和(自身を含む): 32350968

約数和(自身を除く): 11198565

約数列:

[1, 3, 9, 17, 51, 153, 138251, 414753, 1244259, 2350267, 7050801, 21152403]

約数ペア:

[(1, 21152403), (3, 7050801), (9, 2350267), (17, 1244259), (51, 414753), (153, 138251)]