21276903

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{7043}}^1$

素因数の和:7118

約数の個数: 16

約数和(自身を含む): 30430080

約数和(自身を除く): 9153177

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 7043, 21129, 133817, 373279, 401451, 1119837, 7092301, 21276903]

約数ペア:

[(1, 21276903), (3, 7092301), (19, 1119837), (53, 401451), (57, 373279), (159, 133817), (1007, 21129), (3021, 7043)]