20753776

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{293}}^1$

素因数の和:553

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 21899744

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 233, 293, 304, 466, 586, 932, 1172, 1864, 2344, 3728, 4427, 4688, 5567, 8854, 11134, 17708, 22268, 35416, 44536, 68269, 70832, 89072, 136538, 273076, 546152, 1092304, 1297111, 2594222, 5188444, 10376888, 20753776]

約数ペア:

[(1, 20753776), (2, 10376888), (4, 5188444), (8, 2594222), (16, 1297111), (19, 1092304), (38, 546152), (76, 273076), (152, 136538), (233, 89072), (293, 70832), (304, 68269), (466, 44536), (586, 35416), (932, 22268), (1172, 17708), (1864, 11134), (2344, 8854), (3728, 5567), (4427, 4688)]