66881787

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1447}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 106758144

約数和(自身を除く): 39876357

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 497, 651, 1447, 1491, 2201, 4341, 6603, 10129, 15407, 30387, 44857, 46221, 102737, 134571, 308211, 313999, 719159, 941997, 2157477, 3184847, 9554541, 22293929, 66881787]

約数ペア:

[(1, 66881787), (3, 22293929), (7, 9554541), (21, 3184847), (31, 2157477), (71, 941997), (93, 719159), (213, 313999), (217, 308211), (497, 134571), (651, 102737), (1447, 46221), (1491, 44857), (2201, 30387), (4341, 15407), (6603, 10129)]