13120557

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 19353600

約数和(自身を除く): 6233043

約数列:

[1, 3, 23, 29, 69, 79, 83, 87, 237, 249, 667, 1817, 1909, 2001, 2291, 2407, 5451, 5727, 6557, 6873, 7221, 19671, 52693, 55361, 150811, 158079, 166083, 190153, 452433, 570459, 4373519, 13120557]

約数ペア:

[(1, 13120557), (3, 4373519), (23, 570459), (29, 452433), (69, 190153), (79, 166083), (83, 158079), (87, 150811), (237, 55361), (249, 52693), (667, 19671), (1817, 7221), (1909, 6873), (2001, 6557), (2291, 5727), (2407, 5451)]