21867687

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 33228000

約数和(自身を除く): 11360313

約数列:

[1, 3, 9, 23, 69, 149, 207, 447, 709, 1341, 2127, 3427, 6381, 10281, 16307, 30843, 48921, 105641, 146763, 316923, 950769, 2429743, 7289229, 21867687]

約数ペア:

[(1, 21867687), (3, 7289229), (9, 2429743), (23, 950769), (69, 316923), (149, 146763), (207, 105641), (447, 48921), (709, 30843), (1341, 16307), (2127, 10281), (3427, 6381)]