21013195

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 9178421

約数列:

[1, 5, 7, 31, 35, 107, 155, 181, 217, 535, 749, 905, 1085, 1267, 3317, 3745, 5611, 6335, 16585, 19367, 23219, 28055, 39277, 96835, 116095, 135569, 196385, 600377, 677845, 3001885, 4202639, 21013195]

約数ペア:

[(1, 21013195), (5, 4202639), (7, 3001885), (31, 677845), (35, 600377), (107, 196385), (155, 135569), (181, 116095), (217, 96835), (535, 39277), (749, 28055), (905, 23219), (1085, 19367), (1267, 16585), (3317, 6335), (3745, 5611)]