21115712

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:439

約数の個数: 56

約数和(自身を含む): 44866560

約数和(自身を除く): 23750848

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 116, 124, 232, 248, 367, 464, 496, 734, 899, 928, 992, 1468, 1798, 1856, 1984, 2936, 3596, 5872, 7192, 10643, 11377, 11744, 14384, 21286, 22754, 23488, 28768, 42572, 45508, 57536, 85144, 91016, 170288, 182032, 329933, 340576, 364064, 659866, 681152, 728128, 1319732, 2639464, 5278928, 10557856, 21115712]

約数ペア:

[(1, 21115712), (2, 10557856), (4, 5278928), (8, 2639464), (16, 1319732), (29, 728128), (31, 681152), (32, 659866), (58, 364064), (62, 340576), (64, 329933), (116, 182032), (124, 170288), (232, 91016), (248, 85144), (367, 57536), (464, 45508), (496, 42572), (734, 28768), (899, 23488), (928, 22754), (992, 21286), (1468, 14384), (1798, 11744), (1856, 11377), (1984, 10643), (2936, 7192), (3596, 5872)]