21697272

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{9721}}^1$

素因数の和:9764

約数の個数: 48

約数和(自身を含む): 60665280

約数和(自身を除く): 38968008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 1116, 2232, 9721, 19442, 29163, 38884, 58326, 77768, 87489, 116652, 174978, 233304, 301351, 349956, 602702, 699912, 904053, 1205404, 1808106, 2410808, 2712159, 3616212, 5424318, 7232424, 10848636, 21697272]

約数ペア:

[(1, 21697272), (2, 10848636), (3, 7232424), (4, 5424318), (6, 3616212), (8, 2712159), (9, 2410808), (12, 1808106), (18, 1205404), (24, 904053), (31, 699912), (36, 602702), (62, 349956), (72, 301351), (93, 233304), (124, 174978), (186, 116652), (248, 87489), (279, 77768), (372, 58326), (558, 38884), (744, 29163), (1116, 19442), (2232, 9721)]