21055401

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7243}}^1$

素因数の和:7285

約数の個数: 24

約数和(自身を含む): 33901920

約数和(自身を除く): 12846519

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7243, 21729, 65187, 123131, 137617, 369393, 412851, 1108179, 1238553, 2339489, 7018467, 21055401]

約数ペア:

[(1, 21055401), (3, 7018467), (9, 2339489), (17, 1238553), (19, 1108179), (51, 412851), (57, 369393), (153, 137617), (171, 123131), (323, 65187), (969, 21729), (2907, 7243)]