1287996871

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{136397}}^1$

素因数の和:136494

約数の個数: 16

約数和(自身を含む): 1571304960

約数和(自身を除く): 283308089

約数列:

[1, 7, 19, 71, 133, 497, 1349, 9443, 136397, 954779, 2591543, 9684187, 18140801, 67789309, 183999553, 1287996871]

約数ペア:

[(1, 1287996871), (7, 183999553), (19, 67789309), (71, 18140801), (133, 9684187), (497, 2591543), (1349, 954779), (9443, 136397)]