247335711

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{3803}}^1$

素因数の和:3995

約数の個数: 32

約数和(自身を含む): 399267840

約数和(自身を除く): 151932129

約数列:

[1, 3, 7, 19, 21, 57, 133, 163, 399, 489, 1141, 3097, 3423, 3803, 9291, 11409, 21679, 26621, 65037, 72257, 79863, 216771, 505799, 619889, 1517397, 1859667, 4339223, 11777891, 13017669, 35333673, 82445237, 247335711]

約数ペア:

[(1, 247335711), (3, 82445237), (7, 35333673), (19, 13017669), (21, 11777891), (57, 4339223), (133, 1859667), (163, 1517397), (399, 619889), (489, 505799), (1141, 216771), (3097, 79863), (3423, 72257), (3803, 65037), (9291, 26621), (11409, 21679)]