217171878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{1697}}^1$

素因数の和:1997

約数の個数: 64

約数和(自身を含む): 543794688

約数和(自身を除く): 326622810

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 277, 462, 554, 831, 1662, 1697, 1939, 3047, 3394, 3878, 5091, 5817, 6094, 9141, 10182, 11634, 11879, 18282, 18667, 21329, 23758, 35637, 37334, 42658, 56001, 63987, 71274, 112002, 127974, 130669, 261338, 392007, 470069, 784014, 940138, 1410207, 2820414, 3290483, 5170759, 6580966, 9871449, 10341518, 15512277, 19742898, 31024554, 36195313, 72390626, 108585939, 217171878]

約数ペア:

[(1, 217171878), (2, 108585939), (3, 72390626), (6, 36195313), (7, 31024554), (11, 19742898), (14, 15512277), (21, 10341518), (22, 9871449), (33, 6580966), (42, 5170759), (66, 3290483), (77, 2820414), (154, 1410207), (231, 940138), (277, 784014), (462, 470069), (554, 392007), (831, 261338), (1662, 130669), (1697, 127974), (1939, 112002), (3047, 71274), (3394, 63987), (3878, 56001), (5091, 42658), (5817, 37334), (6094, 35637), (9141, 23758), (10182, 21329), (11634, 18667), (11879, 18282)]