256450887

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{421}}^1$

素因数の和:741

約数の個数: 64

約数和(自身を含む): 476421120

約数和(自身を除く): 219970233

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 293, 297, 421, 693, 879, 1263, 2051, 2079, 2637, 2947, 3223, 3789, 4631, 6153, 7911, 8841, 9669, 11367, 13893, 18459, 22561, 26523, 29007, 32417, 41679, 55377, 67683, 79569, 87021, 97251, 123353, 125037, 203049, 291753, 370059, 609147, 863471, 875259, 1110177, 1356883, 2590413, 3330531, 4070649, 7771239, 9498181, 12211947, 23313717, 28494543, 36635841, 85483629, 256450887]

約数ペア:

[(1, 256450887), (3, 85483629), (7, 36635841), (9, 28494543), (11, 23313717), (21, 12211947), (27, 9498181), (33, 7771239), (63, 4070649), (77, 3330531), (99, 2590413), (189, 1356883), (231, 1110177), (293, 875259), (297, 863471), (421, 609147), (693, 370059), (879, 291753), (1263, 203049), (2051, 125037), (2079, 123353), (2637, 97251), (2947, 87021), (3223, 79569), (3789, 67683), (4631, 55377), (6153, 41679), (7911, 32417), (8841, 29007), (9669, 26523), (11367, 22561), (13893, 18459)]