20686176

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:385

約数の個数: 144

約数和(自身を含む): 69608448

約数和(自身を除く): 48922272

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, 331, 336, 372, 434, 496, 504, 558, 651, 662, 672, 744, 868, 992, 993, 1008, 1116, 1302, 1324, 1488, 1736, 1953, 1986, 2016, 2232, 2317, 2604, 2648, 2976, 2979, 3472, 3906, 3972, 4464, 4634, 5208, 5296, 5958, 6944, 6951, 7812, 7944, 8928, 9268, 10261, 10416, 10592, 11916, 13902, 15624, 15888, 18536, 20522, 20832, 20853, 23832, 27804, 30783, 31248, 31776, 37072, 41044, 41706, 47664, 55608, 61566, 62496, 71827, 74144, 82088, 83412, 92349, 95328, 111216, 123132, 143654, 164176, 166824, 184698, 215481, 222432, 246264, 287308, 328352, 333648, 369396, 430962, 492528, 574616, 646443, 667296, 738792, 861924, 985056, 1149232, 1292886, 1477584, 1723848, 2298464, 2585772, 2955168, 3447696, 5171544, 6895392, 10343088, 20686176]

約数ペア:

[(1, 20686176), (2, 10343088), (3, 6895392), (4, 5171544), (6, 3447696), (7, 2955168), (8, 2585772), (9, 2298464), (12, 1723848), (14, 1477584), (16, 1292886), (18, 1149232), (21, 985056), (24, 861924), (28, 738792), (31, 667296), (32, 646443), (36, 574616), (42, 492528), (48, 430962), (56, 369396), (62, 333648), (63, 328352), (72, 287308), (84, 246264), (93, 222432), (96, 215481), (112, 184698), (124, 166824), (126, 164176), (144, 143654), (168, 123132), (186, 111216), (217, 95328), (224, 92349), (248, 83412), (252, 82088), (279, 74144), (288, 71827), (331, 62496), (336, 61566), (372, 55608), (434, 47664), (496, 41706), (504, 41044), (558, 37072), (651, 31776), (662, 31248), (672, 30783), (744, 27804), (868, 23832), (992, 20853), (993, 20832), (1008, 20522), (1116, 18536), (1302, 15888), (1324, 15624), (1488, 13902), (1736, 11916), (1953, 10592), (1986, 10416), (2016, 10261), (2232, 9268), (2317, 8928), (2604, 7944), (2648, 7812), (2976, 6951), (2979, 6944), (3472, 5958), (3906, 5296), (3972, 5208), (4464, 4634)]