21078570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{991}}^1$

素因数の和:1710

約数の個数: 32

約数和(自身を含む): 50711040

約数和(自身を除く): 29632470

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709, 991, 1418, 1982, 2127, 2973, 3545, 4254, 4955, 5946, 7090, 9910, 10635, 14865, 21270, 29730, 702619, 1405238, 2107857, 3513095, 4215714, 7026190, 10539285, 21078570]

約数ペア:

[(1, 21078570), (2, 10539285), (3, 7026190), (5, 4215714), (6, 3513095), (10, 2107857), (15, 1405238), (30, 702619), (709, 29730), (991, 21270), (1418, 14865), (1982, 10635), (2127, 9910), (2973, 7090), (3545, 5946), (4254, 4955)]