15209747

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:112

約数の個数: 36

約数和(自身を含む): 20376360

約数和(自身を除く): 5166613

約数列:

[1, 7, 17, 19, 31, 49, 119, 133, 217, 323, 527, 589, 833, 931, 961, 1519, 2261, 3689, 4123, 6727, 10013, 15827, 16337, 18259, 25823, 28861, 47089, 70091, 114359, 127813, 310403, 490637, 800513, 894691, 2172821, 15209747]

約数ペア:

[(1, 15209747), (7, 2172821), (17, 894691), (19, 800513), (31, 490637), (49, 310403), (119, 127813), (133, 114359), (217, 70091), (323, 47089), (527, 28861), (589, 25823), (833, 18259), (931, 16337), (961, 15827), (1519, 10013), (2261, 6727), (3689, 4123)]