20971872

素因数分解:

$2^5\times 3^6\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 168

約数和(自身を含む): 66104640

約数和(自身を除く): 45132768

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 31, 32, 36, 48, 54, 58, 62, 72, 81, 87, 93, 96, 108, 116, 124, 144, 162, 174, 186, 216, 232, 243, 248, 261, 279, 288, 324, 348, 372, 432, 464, 486, 496, 522, 558, 648, 696, 729, 744, 783, 837, 864, 899, 928, 972, 992, 1044, 1116, 1296, 1392, 1458, 1488, 1566, 1674, 1798, 1944, 2088, 2232, 2349, 2511, 2592, 2697, 2784, 2916, 2976, 3132, 3348, 3596, 3888, 4176, 4464, 4698, 5022, 5394, 5832, 6264, 6696, 7047, 7192, 7533, 7776, 8091, 8352, 8928, 9396, 10044, 10788, 11664, 12528, 13392, 14094, 14384, 15066, 16182, 18792, 20088, 21141, 21576, 22599, 23328, 24273, 25056, 26784, 28188, 28768, 30132, 32364, 37584, 40176, 42282, 43152, 45198, 48546, 56376, 60264, 64728, 72819, 75168, 80352, 84564, 86304, 90396, 97092, 112752, 120528, 129456, 145638, 169128, 180792, 194184, 218457, 225504, 241056, 258912, 291276, 338256, 361584, 388368, 436914, 582552, 655371, 676512, 723168, 776736, 873828, 1165104, 1310742, 1747656, 2330208, 2621484, 3495312, 5242968, 6990624, 10485936, 20971872]

約数ペア:

[(1, 20971872), (2, 10485936), (3, 6990624), (4, 5242968), (6, 3495312), (8, 2621484), (9, 2330208), (12, 1747656), (16, 1310742), (18, 1165104), (24, 873828), (27, 776736), (29, 723168), (31, 676512), (32, 655371), (36, 582552), (48, 436914), (54, 388368), (58, 361584), (62, 338256), (72, 291276), (81, 258912), (87, 241056), (93, 225504), (96, 218457), (108, 194184), (116, 180792), (124, 169128), (144, 145638), (162, 129456), (174, 120528), (186, 112752), (216, 97092), (232, 90396), (243, 86304), (248, 84564), (261, 80352), (279, 75168), (288, 72819), (324, 64728), (348, 60264), (372, 56376), (432, 48546), (464, 45198), (486, 43152), (496, 42282), (522, 40176), (558, 37584), (648, 32364), (696, 30132), (729, 28768), (744, 28188), (783, 26784), (837, 25056), (864, 24273), (899, 23328), (928, 22599), (972, 21576), (992, 21141), (1044, 20088), (1116, 18792), (1296, 16182), (1392, 15066), (1458, 14384), (1488, 14094), (1566, 13392), (1674, 12528), (1798, 11664), (1944, 10788), (2088, 10044), (2232, 9396), (2349, 8928), (2511, 8352), (2592, 8091), (2697, 7776), (2784, 7533), (2916, 7192), (2976, 7047), (3132, 6696), (3348, 6264), (3596, 5832), (3888, 5394), (4176, 5022), (4464, 4698)]