257386171

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1268

約数の個数: 32

約数和(自身を含む): 326678400

約数和(自身を除く): 69292229

約数列:

[1, 7, 17, 37, 49, 119, 259, 343, 629, 833, 1193, 1813, 4403, 5831, 8351, 12691, 20281, 30821, 44141, 58457, 141967, 215747, 308987, 409199, 750397, 993769, 2162909, 5252779, 6956383, 15140363, 36769453, 257386171]

約数ペア:

[(1, 257386171), (7, 36769453), (17, 15140363), (37, 6956383), (49, 5252779), (119, 2162909), (259, 993769), (343, 750397), (629, 409199), (833, 308987), (1193, 215747), (1813, 141967), (4403, 58457), (5831, 44141), (8351, 30821), (12691, 20281)]