21321586

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74551}}^1$

素因数の和:74577

約数の個数: 16

約数和(自身を含む): 37574208

約数和(自身を除く): 16252622

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74551, 149102, 820061, 969163, 1640122, 1938326, 10660793, 21321586]

約数ペア:

[(1, 21321586), (2, 10660793), (11, 1938326), (13, 1640122), (22, 969163), (26, 820061), (143, 149102), (286, 74551)]