19957190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{457}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 39373344

約数和(自身を除く): 19416154

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 397, 457, 794, 914, 1985, 2285, 3970, 4367, 4570, 5027, 8734, 10054, 21835, 25135, 43670, 50270, 181429, 362858, 907145, 1814290, 1995719, 3991438, 9978595, 19957190]

約数ペア:

[(1, 19957190), (2, 9978595), (5, 3991438), (10, 1995719), (11, 1814290), (22, 907145), (55, 362858), (110, 181429), (397, 50270), (457, 43670), (794, 25135), (914, 21835), (1985, 10054), (2285, 8734), (3970, 5027), (4367, 4570)]