21497872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122147}}^1$

素因数の和:122166

約数の個数: 20

約数和(自身を含む): 45439056

約数和(自身を除く): 23941184

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122147, 244294, 488588, 977176, 1343617, 1954352, 2687234, 5374468, 10748936, 21497872]

約数ペア:

[(1, 21497872), (2, 10748936), (4, 5374468), (8, 2687234), (11, 1954352), (16, 1343617), (22, 977176), (44, 488588), (88, 244294), (176, 122147)]