208909921

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{12043}}^1$

素因数の和:12156

約数の個数: 16

約数和(自身を含む): 242807040

約数和(自身を除く): 33897119

約数列:

[1, 11, 19, 83, 209, 913, 1577, 12043, 17347, 132473, 228817, 999569, 2516987, 10995259, 18991811, 208909921]

約数ペア:

[(1, 208909921), (11, 18991811), (19, 10995259), (83, 2516987), (209, 999569), (913, 228817), (1577, 132473), (12043, 17347)]