21555324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3719}}^1$

素因数の和:3759

約数の個数: 72

約数和(自身を含む): 64995840

約数和(自身を除く): 43440516

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 276, 322, 414, 483, 644, 828, 966, 1449, 1932, 2898, 3719, 5796, 7438, 11157, 14876, 22314, 26033, 33471, 44628, 52066, 66942, 78099, 85537, 104132, 133884, 156198, 171074, 234297, 256611, 312396, 342148, 468594, 513222, 598759, 769833, 937188, 1026444, 1197518, 1539666, 1796277, 2395036, 3079332, 3592554, 5388831, 7185108, 10777662, 21555324]

約数ペア:

[(1, 21555324), (2, 10777662), (3, 7185108), (4, 5388831), (6, 3592554), (7, 3079332), (9, 2395036), (12, 1796277), (14, 1539666), (18, 1197518), (21, 1026444), (23, 937188), (28, 769833), (36, 598759), (42, 513222), (46, 468594), (63, 342148), (69, 312396), (84, 256611), (92, 234297), (126, 171074), (138, 156198), (161, 133884), (207, 104132), (252, 85537), (276, 78099), (322, 66942), (414, 52066), (483, 44628), (644, 33471), (828, 26033), (966, 22314), (1449, 14876), (1932, 11157), (2898, 7438), (3719, 5796)]