13205787

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 21648384

約数和(自身を除く): 8442597

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 497, 521, 1207, 1491, 1563, 3621, 3647, 8449, 8857, 10941, 25347, 26571, 36991, 61999, 110973, 185997, 258937, 628847, 776811, 1886541, 4401929, 13205787]

約数ペア:

[(1, 13205787), (3, 4401929), (7, 1886541), (17, 776811), (21, 628847), (51, 258937), (71, 185997), (119, 110973), (213, 61999), (357, 36991), (497, 26571), (521, 25347), (1207, 10941), (1491, 8857), (1563, 8449), (3621, 3647)]