208881009

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{15061}}^1$

素因数の和:15157

約数の個数: 24

約数和(自身を含む): 319555392

約数和(自身を除く): 110674383

約数列:

[1, 3, 9, 23, 67, 69, 201, 207, 603, 1541, 4623, 13869, 15061, 45183, 135549, 346403, 1009087, 1039209, 3027261, 3117627, 9081783, 23209001, 69627003, 208881009]

約数ペア:

[(1, 208881009), (3, 69627003), (9, 23209001), (23, 9081783), (67, 3117627), (69, 3027261), (201, 1039209), (207, 1009087), (603, 346403), (1541, 135549), (4623, 45183), (13869, 15061)]