21731007

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{1409}}^1$

素因数の和:1562

約数の個数: 16

約数和(自身を含む): 29846880

約数和(自身を除く): 8115873

約数列:

[1, 3, 53, 97, 159, 291, 1409, 4227, 5141, 15423, 74677, 136673, 224031, 410019, 7243669, 21731007]

約数ペア:

[(1, 21731007), (3, 7243669), (53, 410019), (97, 224031), (159, 136673), (291, 74677), (1409, 15423), (4227, 5141)]