721000401

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{643}}^1\times {\mathrm{3089}}^1$

素因数の和:3757

約数の個数: 24

約数和(自身を含む): 1058658720

約数和(自身を除く): 337658319

約数列:

[1, 3, 11, 33, 121, 363, 643, 1929, 3089, 7073, 9267, 21219, 33979, 77803, 101937, 233409, 373769, 1121307, 1986227, 5958681, 21848497, 65545491, 240333467, 721000401]

約数ペア:

[(1, 721000401), (3, 240333467), (11, 65545491), (33, 21848497), (121, 5958681), (363, 1986227), (643, 1121307), (1929, 373769), (3089, 233409), (7073, 101937), (9267, 77803), (21219, 33979)]