61718391

素因数分解:

$3^2\times 7^3\times {\mathrm{19993}}^1$

素因数の和:20020

約数の個数: 24

約数和(自身を含む): 103968800

約数和(自身を除く): 42250409

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 19993, 59979, 139951, 179937, 419853, 979657, 1259559, 2938971, 6857599, 8816913, 20572797, 61718391]

約数ペア:

[(1, 61718391), (3, 20572797), (7, 8816913), (9, 6857599), (21, 2938971), (49, 1259559), (63, 979657), (147, 419853), (343, 179937), (441, 139951), (1029, 59979), (3087, 19993)]