71350909

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{443}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 88071840

約数和(自身を除く): 16720931

約数列:

[1, 7, 19, 49, 133, 173, 443, 931, 1211, 3101, 3287, 8417, 8477, 21707, 23009, 58919, 76639, 161063, 412433, 536473, 1456141, 3755311, 10192987, 71350909]

約数ペア:

[(1, 71350909), (7, 10192987), (19, 3755311), (49, 1456141), (133, 536473), (173, 412433), (443, 161063), (931, 76639), (1211, 58919), (3101, 23009), (3287, 21707), (8417, 8477)]