19491511

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 32

約数和(自身を含む): 23869440

約数和(自身を除く): 4377929

約数列:

[1, 13, 19, 23, 47, 73, 247, 299, 437, 611, 893, 949, 1081, 1387, 1679, 3431, 5681, 11609, 14053, 18031, 20539, 21827, 31901, 44603, 65189, 78913, 267007, 414713, 847457, 1025869, 1499347, 19491511]

約数ペア:

[(1, 19491511), (13, 1499347), (19, 1025869), (23, 847457), (47, 414713), (73, 267007), (247, 78913), (299, 65189), (437, 44603), (611, 31901), (893, 21827), (949, 20539), (1081, 18031), (1387, 14053), (1679, 11609), (3431, 5681)]