20641258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 37526976

約数和(自身を除く): 16885718

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 113, 209, 226, 253, 361, 418, 437, 506, 722, 874, 1243, 2147, 2486, 2599, 3971, 4294, 4807, 5198, 7942, 8303, 9614, 16606, 23617, 28589, 40793, 47234, 49381, 57178, 81586, 91333, 98762, 182666, 448723, 543191, 897446, 938239, 1086382, 1876478, 10320629, 20641258]

約数ペア:

[(1, 20641258), (2, 10320629), (11, 1876478), (19, 1086382), (22, 938239), (23, 897446), (38, 543191), (46, 448723), (113, 182666), (209, 98762), (226, 91333), (253, 81586), (361, 57178), (418, 49381), (437, 47234), (506, 40793), (722, 28589), (874, 23617), (1243, 16606), (2147, 9614), (2486, 8303), (2599, 7942), (3971, 5198), (4294, 4807)]