19722170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{719}}^1$

素因数の和:950

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 18743110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 211, 422, 719, 1055, 1438, 2110, 2743, 3595, 5486, 7190, 9347, 13715, 18694, 27430, 46735, 93470, 151709, 303418, 758545, 1517090, 1972217, 3944434, 9861085, 19722170]

約数ペア:

[(1, 19722170), (2, 9861085), (5, 3944434), (10, 1972217), (13, 1517090), (26, 758545), (65, 303418), (130, 151709), (211, 93470), (422, 46735), (719, 27430), (1055, 18694), (1438, 13715), (2110, 9347), (2743, 7190), (3595, 5486)]