21972828

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{439}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 53123840

約数和(自身を除く): 31151012

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 97, 129, 172, 194, 258, 291, 388, 439, 516, 582, 878, 1164, 1317, 1756, 2634, 4171, 5268, 8342, 12513, 16684, 18877, 25026, 37754, 42583, 50052, 56631, 75508, 85166, 113262, 127749, 170332, 226524, 255498, 510996, 1831069, 3662138, 5493207, 7324276, 10986414, 21972828]

約数ペア:

[(1, 21972828), (2, 10986414), (3, 7324276), (4, 5493207), (6, 3662138), (12, 1831069), (43, 510996), (86, 255498), (97, 226524), (129, 170332), (172, 127749), (194, 113262), (258, 85166), (291, 75508), (388, 56631), (439, 50052), (516, 42583), (582, 37754), (878, 25026), (1164, 18877), (1317, 16684), (1756, 12513), (2634, 8342), (4171, 5268)]