18957497

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 4266823

約数列:

[1, 13, 19, 23, 47, 71, 247, 299, 437, 611, 893, 923, 1081, 1349, 1633, 3337, 5681, 11609, 14053, 17537, 20539, 21229, 31027, 43381, 63403, 76751, 267007, 403351, 824239, 997763, 1458269, 18957497]

約数ペア:

[(1, 18957497), (13, 1458269), (19, 997763), (23, 824239), (47, 403351), (71, 267007), (247, 76751), (299, 63403), (437, 43381), (611, 31027), (893, 21229), (923, 20539), (1081, 17537), (1349, 14053), (1633, 11609), (3337, 5681)]