2813517

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 5121792

約数和(自身を除く): 2308275

約数列:

[1, 3, 7, 9, 17, 21, 37, 51, 63, 71, 111, 119, 153, 213, 259, 333, 357, 497, 629, 639, 777, 1071, 1207, 1491, 1887, 2331, 2627, 3621, 4403, 4473, 5661, 7881, 8449, 10863, 13209, 18389, 23643, 25347, 39627, 44659, 55167, 76041, 133977, 165501, 312613, 401931, 937839, 2813517]

約数ペア:

[(1, 2813517), (3, 937839), (7, 401931), (9, 312613), (17, 165501), (21, 133977), (37, 76041), (51, 55167), (63, 44659), (71, 39627), (111, 25347), (119, 23643), (153, 18389), (213, 13209), (259, 10863), (333, 8449), (357, 7881), (497, 5661), (629, 4473), (639, 4403), (777, 3621), (1071, 2627), (1207, 2331), (1491, 1887)]