12390917

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 16588800

約数和(自身を除く): 4197883

約数列:

[1, 7, 11, 29, 31, 77, 179, 203, 217, 319, 341, 899, 1253, 1969, 2233, 2387, 5191, 5549, 6293, 9889, 13783, 36337, 38843, 57101, 61039, 69223, 160921, 399707, 427273, 1126447, 1770131, 12390917]

約数ペア:

[(1, 12390917), (7, 1770131), (11, 1126447), (29, 427273), (31, 399707), (77, 160921), (179, 69223), (203, 61039), (217, 57101), (319, 38843), (341, 36337), (899, 13783), (1253, 9889), (1969, 6293), (2233, 5549), (2387, 5191)]