8440551

素因数分解:

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

素因数の和:141

約数の個数: 64

約数和(自身を含む): 15759360

約数和(自身を除く): 7318809

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 71, 111, 119, 153, 189, 213, 259, 333, 357, 459, 497, 629, 639, 777, 999, 1071, 1207, 1491, 1887, 1917, 2331, 2627, 3213, 3621, 4403, 4473, 5661, 6993, 7881, 8449, 10863, 13209, 13419, 16983, 18389, 23643, 25347, 32589, 39627, 44659, 55167, 70929, 76041, 118881, 133977, 165501, 228123, 312613, 401931, 496503, 937839, 1205793, 2813517, 8440551]

約数ペア:

[(1, 8440551), (3, 2813517), (7, 1205793), (9, 937839), (17, 496503), (21, 401931), (27, 312613), (37, 228123), (51, 165501), (63, 133977), (71, 118881), (111, 76041), (119, 70929), (153, 55167), (189, 44659), (213, 39627), (259, 32589), (333, 25347), (357, 23643), (459, 18389), (497, 16983), (629, 13419), (639, 13209), (777, 10863), (999, 8449), (1071, 7881), (1207, 6993), (1491, 5661), (1887, 4473), (1917, 4403), (2331, 3621), (2627, 3213)]