19752555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 33965568

約数和(自身を除く): 14213013

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1091, 1207, 3273, 3621, 5455, 6035, 16365, 18105, 18547, 55641, 77461, 92735, 232383, 278205, 387305, 1161915, 1316837, 3950511, 6584185, 19752555]

約数ペア:

[(1, 19752555), (3, 6584185), (5, 3950511), (15, 1316837), (17, 1161915), (51, 387305), (71, 278205), (85, 232383), (213, 92735), (255, 77461), (355, 55641), (1065, 18547), (1091, 18105), (1207, 16365), (3273, 6035), (3621, 5455)]