21011914

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2903}}^1$

素因数の和:2970

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 19132982

約数列:

[1, 2, 7, 11, 14, 22, 47, 77, 94, 154, 329, 517, 658, 1034, 2903, 3619, 5806, 7238, 20321, 31933, 40642, 63866, 136441, 223531, 272882, 447062, 955087, 1500851, 1910174, 3001702, 10505957, 21011914]

約数ペア:

[(1, 21011914), (2, 10505957), (7, 3001702), (11, 1910174), (14, 1500851), (22, 955087), (47, 447062), (77, 272882), (94, 223531), (154, 136441), (329, 63866), (517, 40642), (658, 31933), (1034, 20321), (2903, 7238), (3619, 5806)]