21325968

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:221

約数の個数: 120

約数和(自身を含む): 64067328

約数和(自身を除く): 42741360

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 36, 46, 47, 48, 69, 72, 92, 94, 137, 138, 141, 144, 184, 188, 207, 274, 276, 282, 368, 376, 411, 414, 423, 548, 552, 564, 752, 822, 828, 846, 1081, 1096, 1104, 1128, 1233, 1644, 1656, 1692, 2162, 2192, 2256, 2466, 3151, 3243, 3288, 3312, 3384, 4324, 4932, 6302, 6439, 6486, 6576, 6768, 8648, 9453, 9729, 9864, 12604, 12878, 12972, 17296, 18906, 19317, 19458, 19728, 25208, 25756, 25944, 28359, 37812, 38634, 38916, 50416, 51512, 51888, 56718, 57951, 75624, 77268, 77832, 103024, 113436, 115902, 148097, 151248, 154536, 155664, 226872, 231804, 296194, 309072, 444291, 453744, 463608, 592388, 888582, 927216, 1184776, 1332873, 1777164, 2369552, 2665746, 3554328, 5331492, 7108656, 10662984, 21325968]

約数ペア:

[(1, 21325968), (2, 10662984), (3, 7108656), (4, 5331492), (6, 3554328), (8, 2665746), (9, 2369552), (12, 1777164), (16, 1332873), (18, 1184776), (23, 927216), (24, 888582), (36, 592388), (46, 463608), (47, 453744), (48, 444291), (69, 309072), (72, 296194), (92, 231804), (94, 226872), (137, 155664), (138, 154536), (141, 151248), (144, 148097), (184, 115902), (188, 113436), (207, 103024), (274, 77832), (276, 77268), (282, 75624), (368, 57951), (376, 56718), (411, 51888), (414, 51512), (423, 50416), (548, 38916), (552, 38634), (564, 37812), (752, 28359), (822, 25944), (828, 25756), (846, 25208), (1081, 19728), (1096, 19458), (1104, 19317), (1128, 18906), (1233, 17296), (1644, 12972), (1656, 12878), (1692, 12604), (2162, 9864), (2192, 9729), (2256, 9453), (2466, 8648), (3151, 6768), (3243, 6576), (3288, 6486), (3312, 6439), (3384, 6302), (4324, 4932)]