207928521

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 322882560

約数和(自身を除く): 114954039

約数列:

[1, 3, 9, 29, 43, 87, 97, 129, 191, 261, 291, 387, 573, 873, 1247, 1719, 2813, 3741, 4171, 5539, 8213, 8439, 11223, 12513, 16617, 18527, 24639, 25317, 37539, 49851, 55581, 73917, 120959, 166743, 238177, 362877, 537283, 714531, 796661, 1088631, 1611849, 2143593, 2389983, 4835547, 7169949, 23103169, 69309507, 207928521]

約数ペア:

[(1, 207928521), (3, 69309507), (9, 23103169), (29, 7169949), (43, 4835547), (87, 2389983), (97, 2143593), (129, 1611849), (191, 1088631), (261, 796661), (291, 714531), (387, 537283), (573, 362877), (873, 238177), (1247, 166743), (1719, 120959), (2813, 73917), (3741, 55581), (4171, 49851), (5539, 37539), (8213, 25317), (8439, 24639), (11223, 18527), (12513, 16617)]