21335446

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{673}}^1$

素因数の和:828

約数の個数: 24

約数和(自身を含む): 35498232

約数和(自身を除く): 14162786

約数列:

[1, 2, 11, 22, 121, 131, 242, 262, 673, 1346, 1441, 2882, 7403, 14806, 15851, 31702, 81433, 88163, 162866, 176326, 969793, 1939586, 10667723, 21335446]

約数ペア:

[(1, 21335446), (2, 10667723), (11, 1939586), (22, 969793), (121, 176326), (131, 162866), (242, 88163), (262, 81433), (673, 31702), (1346, 15851), (1441, 14806), (2882, 7403)]