21411896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25244104

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 71, 88, 92, 142, 149, 184, 253, 284, 298, 506, 568, 596, 781, 1012, 1192, 1562, 1633, 1639, 2024, 3124, 3266, 3278, 3427, 6248, 6532, 6556, 6854, 10579, 13064, 13112, 13708, 17963, 21158, 27416, 35926, 37697, 42316, 71852, 75394, 84632, 116369, 143704, 150788, 232738, 243317, 301576, 465476, 486634, 930952, 973268, 1946536, 2676487, 5352974, 10705948, 21411896]

約数ペア:

[(1, 21411896), (2, 10705948), (4, 5352974), (8, 2676487), (11, 1946536), (22, 973268), (23, 930952), (44, 486634), (46, 465476), (71, 301576), (88, 243317), (92, 232738), (142, 150788), (149, 143704), (184, 116369), (253, 84632), (284, 75394), (298, 71852), (506, 42316), (568, 37697), (596, 35926), (781, 27416), (1012, 21158), (1192, 17963), (1562, 13708), (1633, 13112), (1639, 13064), (2024, 10579), (3124, 6854), (3266, 6556), (3278, 6532), (3427, 6248)]