19991269

素因数分解:

${\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 21818160

約数和(自身を除く): 1826891

約数列:

[1, 17, 73, 89, 181, 1241, 1513, 3077, 6497, 13213, 16109, 110449, 224621, 273853, 1175957, 19991269]

約数ペア:

[(1, 19991269), (17, 1175957), (73, 273853), (89, 224621), (181, 110449), (1241, 16109), (1513, 13213), (3077, 6497)]