21556656

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:495

約数の個数: 120

約数和(自身を含む): 68090880

約数和(自身を除く): 46534224

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 31, 33, 36, 44, 48, 62, 66, 72, 88, 93, 99, 124, 132, 144, 176, 186, 198, 248, 264, 279, 341, 372, 396, 439, 496, 528, 558, 682, 744, 792, 878, 1023, 1116, 1317, 1364, 1488, 1584, 1756, 2046, 2232, 2634, 2728, 3069, 3512, 3951, 4092, 4464, 4829, 5268, 5456, 6138, 7024, 7902, 8184, 9658, 10536, 12276, 13609, 14487, 15804, 16368, 19316, 21072, 24552, 27218, 28974, 31608, 38632, 40827, 43461, 49104, 54436, 57948, 63216, 77264, 81654, 86922, 108872, 115896, 122481, 149699, 163308, 173844, 217744, 231792, 244962, 299398, 326616, 347688, 449097, 489924, 598796, 653232, 695376, 898194, 979848, 1197592, 1347291, 1796388, 1959696, 2395184, 2694582, 3592776, 5389164, 7185552, 10778328, 21556656]

約数ペア:

[(1, 21556656), (2, 10778328), (3, 7185552), (4, 5389164), (6, 3592776), (8, 2694582), (9, 2395184), (11, 1959696), (12, 1796388), (16, 1347291), (18, 1197592), (22, 979848), (24, 898194), (31, 695376), (33, 653232), (36, 598796), (44, 489924), (48, 449097), (62, 347688), (66, 326616), (72, 299398), (88, 244962), (93, 231792), (99, 217744), (124, 173844), (132, 163308), (144, 149699), (176, 122481), (186, 115896), (198, 108872), (248, 86922), (264, 81654), (279, 77264), (341, 63216), (372, 57948), (396, 54436), (439, 49104), (496, 43461), (528, 40827), (558, 38632), (682, 31608), (744, 28974), (792, 27218), (878, 24552), (1023, 21072), (1116, 19316), (1317, 16368), (1364, 15804), (1488, 14487), (1584, 13609), (1756, 12276), (2046, 10536), (2232, 9658), (2634, 8184), (2728, 7902), (3069, 7024), (3512, 6138), (3951, 5456), (4092, 5268), (4464, 4829)]