208568451

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{109141}}^1$

素因数の和:109171

約数の個数: 24

約数和(自身を含む): 348381264

約数和(自身を除く): 139812813

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 109141, 327423, 763987, 1418833, 2291961, 4256499, 5347909, 9931831, 16043727, 29795493, 69522817, 208568451]

約数ペア:

[(1, 208568451), (3, 69522817), (7, 29795493), (13, 16043727), (21, 9931831), (39, 5347909), (49, 4256499), (91, 2291961), (147, 1418833), (273, 763987), (637, 327423), (1911, 109141)]