21811104

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 144

約数和(自身を含む): 73382400

約数和(自身を除く): 51571296

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 32, 36, 42, 48, 56, 62, 63, 72, 84, 93, 96, 112, 124, 126, 144, 168, 186, 217, 224, 248, 252, 279, 288, 336, 349, 372, 434, 496, 504, 558, 651, 672, 698, 744, 868, 992, 1008, 1047, 1116, 1302, 1396, 1488, 1736, 1953, 2016, 2094, 2232, 2443, 2604, 2792, 2976, 3141, 3472, 3906, 4188, 4464, 4886, 5208, 5584, 6282, 6944, 7329, 7812, 8376, 8928, 9772, 10416, 10819, 11168, 12564, 14658, 15624, 16752, 19544, 20832, 21638, 21987, 25128, 29316, 31248, 32457, 33504, 39088, 43276, 43974, 50256, 58632, 62496, 64914, 75733, 78176, 86552, 87948, 97371, 100512, 117264, 129828, 151466, 173104, 175896, 194742, 227199, 234528, 259656, 302932, 346208, 351792, 389484, 454398, 519312, 605864, 681597, 703584, 778968, 908796, 1038624, 1211728, 1363194, 1557936, 1817592, 2423456, 2726388, 3115872, 3635184, 5452776, 7270368, 10905552, 21811104]

約数ペア:

[(1, 21811104), (2, 10905552), (3, 7270368), (4, 5452776), (6, 3635184), (7, 3115872), (8, 2726388), (9, 2423456), (12, 1817592), (14, 1557936), (16, 1363194), (18, 1211728), (21, 1038624), (24, 908796), (28, 778968), (31, 703584), (32, 681597), (36, 605864), (42, 519312), (48, 454398), (56, 389484), (62, 351792), (63, 346208), (72, 302932), (84, 259656), (93, 234528), (96, 227199), (112, 194742), (124, 175896), (126, 173104), (144, 151466), (168, 129828), (186, 117264), (217, 100512), (224, 97371), (248, 87948), (252, 86552), (279, 78176), (288, 75733), (336, 64914), (349, 62496), (372, 58632), (434, 50256), (496, 43974), (504, 43276), (558, 39088), (651, 33504), (672, 32457), (698, 31248), (744, 29316), (868, 25128), (992, 21987), (1008, 21638), (1047, 20832), (1116, 19544), (1302, 16752), (1396, 15624), (1488, 14658), (1736, 12564), (1953, 11168), (2016, 10819), (2094, 10416), (2232, 9772), (2443, 8928), (2604, 8376), (2792, 7812), (2976, 7329), (3141, 6944), (3472, 6282), (3906, 5584), (4188, 5208), (4464, 4886)]