278535123

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{42337}}^1$

素因数の和:42403

約数の個数: 24

約数和(自身を含む): 435912048

約数和(自身を除く): 157376925

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 6579, 42337, 127011, 381033, 719729, 1820491, 2159187, 5461473, 6477561, 16384419, 30948347, 92845041, 278535123]

約数ペア:

[(1, 278535123), (3, 92845041), (9, 30948347), (17, 16384419), (43, 6477561), (51, 5461473), (129, 2159187), (153, 1820491), (387, 719729), (731, 381033), (2193, 127011), (6579, 42337)]