21000559488

素因数分解:

$2^7\times 3^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{18787}}^1$

素因数の和:18916

約数の個数: 128

約数和(自身を含む): 57951210240

約数和(自身を除く): 36950650752

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 71, 82, 96, 123, 128, 142, 164, 192, 213, 246, 284, 328, 384, 426, 492, 568, 656, 852, 984, 1136, 1312, 1704, 1968, 2272, 2624, 2911, 3408, 3936, 4544, 5248, 5822, 6816, 7872, 8733, 9088, 11644, 13632, 15744, 17466, 18787, 23288, 27264, 34932, 37574, 46576, 56361, 69864, 75148, 93152, 112722, 139728, 150296, 186304, 225444, 279456, 300592, 372608, 450888, 558912, 601184, 770267, 901776, 1117824, 1202368, 1333877, 1540534, 1803552, 2310801, 2404736, 2667754, 3081068, 3607104, 4001631, 4621602, 5335508, 6162136, 7214208, 8003262, 9243204, 10671016, 12324272, 16006524, 18486408, 21342032, 24648544, 32013048, 36972816, 42684064, 49297088, 54688957, 64026096, 73945632, 85368128, 98594176, 109377914, 128052192, 147891264, 164066871, 170736256, 218755828, 256104384, 295782528, 328133742, 437511656, 512208768, 656267484, 875023312, 1312534968, 1750046624, 2625069936, 3500093248, 5250139872, 7000186496, 10500279744, 21000559488]

約数ペア:

[(1, 21000559488), (2, 10500279744), (3, 7000186496), (4, 5250139872), (6, 3500093248), (8, 2625069936), (12, 1750046624), (16, 1312534968), (24, 875023312), (32, 656267484), (41, 512208768), (48, 437511656), (64, 328133742), (71, 295782528), (82, 256104384), (96, 218755828), (123, 170736256), (128, 164066871), (142, 147891264), (164, 128052192), (192, 109377914), (213, 98594176), (246, 85368128), (284, 73945632), (328, 64026096), (384, 54688957), (426, 49297088), (492, 42684064), (568, 36972816), (656, 32013048), (852, 24648544), (984, 21342032), (1136, 18486408), (1312, 16006524), (1704, 12324272), (1968, 10671016), (2272, 9243204), (2624, 8003262), (2911, 7214208), (3408, 6162136), (3936, 5335508), (4544, 4621602), (5248, 4001631), (5822, 3607104), (6816, 3081068), (7872, 2667754), (8733, 2404736), (9088, 2310801), (11644, 1803552), (13632, 1540534), (15744, 1333877), (17466, 1202368), (18787, 1117824), (23288, 901776), (27264, 770267), (34932, 601184), (37574, 558912), (46576, 450888), (56361, 372608), (69864, 300592), (75148, 279456), (93152, 225444), (112722, 186304), (139728, 150296)]