249994521

素因数分解:

$3^2\times 7^4\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:560

約数の個数: 60

約数和(自身を含む): 440451648

約数和(自身を除く): 190457127

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 343, 441, 483, 503, 1029, 1127, 1449, 1509, 2401, 3087, 3381, 3521, 4527, 7203, 7889, 10143, 10563, 11569, 21609, 23667, 24647, 31689, 34707, 55223, 71001, 73941, 80983, 104121, 165669, 172529, 221823, 242949, 497007, 517587, 566881, 728847, 1207703, 1552761, 1700643, 3623109, 3968167, 5101929, 10869327, 11904501, 27777169, 35713503, 83331507, 249994521]

約数ペア:

[(1, 249994521), (3, 83331507), (7, 35713503), (9, 27777169), (21, 11904501), (23, 10869327), (49, 5101929), (63, 3968167), (69, 3623109), (147, 1700643), (161, 1552761), (207, 1207703), (343, 728847), (441, 566881), (483, 517587), (503, 497007), (1029, 242949), (1127, 221823), (1449, 172529), (1509, 165669), (2401, 104121), (3087, 80983), (3381, 73941), (3521, 71001), (4527, 55223), (7203, 34707), (7889, 31689), (10143, 24647), (10563, 23667), (11569, 21609)]