28021642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{12611}}^1$

素因数の和:12725

約数の個数: 16

約数和(自身を含む): 46311264

約数和(自身を除く): 18289622

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 12611, 25222, 138721, 277442, 1273711, 2547422, 14010821, 28021642]

約数ペア:

[(1, 28021642), (2, 14010821), (11, 2547422), (22, 1273711), (101, 277442), (202, 138721), (1111, 25222), (2222, 12611)]