21052291

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:606

約数の個数: 16

約数和(自身を含む): 23849280

約数和(自身を除く): 2796989

約数列:

[1, 13, 23, 181, 299, 389, 2353, 4163, 5057, 8947, 54119, 70409, 116311, 915317, 1619407, 21052291]

約数ペア:

[(1, 21052291), (13, 1619407), (23, 915317), (181, 116311), (299, 70409), (389, 54119), (2353, 8947), (4163, 5057)]