31819767

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^2\times {\mathrm{107}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 53049600

約数和(自身を除く): 21229833

約数列:

[1, 3, 7, 17, 21, 49, 51, 107, 119, 147, 289, 321, 343, 357, 749, 833, 867, 1029, 1819, 2023, 2247, 2499, 5243, 5457, 5831, 6069, 12733, 14161, 15729, 17493, 30923, 36701, 38199, 42483, 89131, 92769, 99127, 110103, 216461, 267393, 297381, 623917, 649383, 1515227, 1871751, 4545681, 10606589, 31819767]

約数ペア:

[(1, 31819767), (3, 10606589), (7, 4545681), (17, 1871751), (21, 1515227), (49, 649383), (51, 623917), (107, 297381), (119, 267393), (147, 216461), (289, 110103), (321, 99127), (343, 92769), (357, 89131), (749, 42483), (833, 38199), (867, 36701), (1029, 30923), (1819, 17493), (2023, 15729), (2247, 14161), (2499, 12733), (5243, 6069), (5457, 5831)]