28219023

素因数分解:

$3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 48636192

約数和(自身を除く): 20417169

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 157, 189, 317, 471, 567, 951, 1099, 1413, 2219, 2853, 3297, 4239, 6657, 8559, 9891, 12717, 19971, 25677, 29673, 49769, 59913, 89019, 149307, 179739, 348383, 447921, 1045149, 1343763, 3135447, 4031289, 9406341, 28219023]

約数ペア:

[(1, 28219023), (3, 9406341), (7, 4031289), (9, 3135447), (21, 1343763), (27, 1045149), (63, 447921), (81, 348383), (157, 179739), (189, 149307), (317, 89019), (471, 59913), (567, 49769), (951, 29673), (1099, 25677), (1413, 19971), (2219, 12717), (2853, 9891), (3297, 8559), (4239, 6657)]