28475391

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 48045312

約数和(自身を除く): 19569921

約数列:

[1, 3, 7, 17, 21, 31, 51, 83, 93, 119, 217, 249, 357, 527, 581, 651, 961, 1411, 1581, 1743, 2573, 2883, 3689, 4233, 6727, 7719, 9877, 11067, 16337, 18011, 20181, 29631, 43741, 49011, 54033, 79763, 114359, 131223, 239289, 306187, 343077, 558341, 918561, 1355971, 1675023, 4067913, 9491797, 28475391]

約数ペア:

[(1, 28475391), (3, 9491797), (7, 4067913), (17, 1675023), (21, 1355971), (31, 918561), (51, 558341), (83, 343077), (93, 306187), (119, 239289), (217, 131223), (249, 114359), (357, 79763), (527, 54033), (581, 49011), (651, 43741), (961, 29631), (1411, 20181), (1581, 18011), (1743, 16337), (2573, 11067), (2883, 9877), (3689, 7719), (4233, 6727)]