201680847

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:605

約数の個数: 40

約数和(自身を含む): 310495680

約数和(自身を除く): 108814833

約数列:

[1, 3, 9, 27, 53, 81, 109, 159, 327, 431, 477, 981, 1293, 1431, 2943, 3879, 4293, 5777, 8829, 11637, 17331, 22843, 34911, 46979, 51993, 68529, 140937, 155979, 205587, 422811, 467937, 616761, 1268433, 1850283, 2489887, 3805299, 7469661, 22408983, 67226949, 201680847]

約数ペア:

[(1, 201680847), (3, 67226949), (9, 22408983), (27, 7469661), (53, 3805299), (81, 2489887), (109, 1850283), (159, 1268433), (327, 616761), (431, 467937), (477, 422811), (981, 205587), (1293, 155979), (1431, 140937), (2943, 68529), (3879, 51993), (4293, 46979), (5777, 34911), (8829, 22843), (11637, 17331)]