28789313

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:174

約数の個数: 36

約数和(自身を含む): 37797840

約数和(自身を除く): 9008527

約数列:

[1, 7, 17, 19, 49, 107, 119, 133, 289, 323, 749, 833, 931, 1819, 2023, 2033, 2261, 5243, 5491, 12733, 14161, 14231, 15827, 30923, 34561, 38437, 89131, 99617, 216461, 241927, 269059, 587537, 1515227, 1693489, 4112759, 28789313]

約数ペア:

[(1, 28789313), (7, 4112759), (17, 1693489), (19, 1515227), (49, 587537), (107, 269059), (119, 241927), (133, 216461), (289, 99617), (323, 89131), (749, 38437), (833, 34561), (931, 30923), (1819, 15827), (2023, 14231), (2033, 14161), (2261, 12733), (5243, 5491)]