30721041

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3919}}^1$

素因数の和:4005

約数の個数: 24

約数和(自身を含む): 48513920

約数和(自身を除く): 17792879

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 3919, 7839, 11757, 35271, 50947, 152841, 262573, 458523, 787719, 2363157, 3413449, 10240347, 30721041]

約数ペア:

[(1, 30721041), (3, 10240347), (9, 3413449), (13, 2363157), (39, 787719), (67, 458523), (117, 262573), (201, 152841), (603, 50947), (871, 35271), (2613, 11757), (3919, 7839)]