20891266

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{673}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 36687168

約数和(自身を除く): 15795902

約数列:

[1, 2, 11, 17, 22, 34, 83, 166, 187, 374, 673, 913, 1346, 1411, 1826, 2822, 7403, 11441, 14806, 15521, 22882, 31042, 55859, 111718, 125851, 251702, 614449, 949603, 1228898, 1899206, 10445633, 20891266]

約数ペア:

[(1, 20891266), (2, 10445633), (11, 1899206), (17, 1228898), (22, 949603), (34, 614449), (83, 251702), (166, 125851), (187, 111718), (374, 55859), (673, 31042), (913, 22882), (1346, 15521), (1411, 14806), (1826, 11441), (2822, 7403)]