21703556

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 44913792

約数和(自身を除く): 23210236

約数列:

[1, 2, 4, 7, 14, 28, 61, 97, 122, 131, 194, 244, 262, 388, 427, 524, 679, 854, 917, 1358, 1708, 1834, 2716, 3668, 5917, 7991, 11834, 12707, 15982, 23668, 25414, 31964, 41419, 50828, 55937, 82838, 88949, 111874, 165676, 177898, 223748, 355796, 775127, 1550254, 3100508, 5425889, 10851778, 21703556]

約数ペア:

[(1, 21703556), (2, 10851778), (4, 5425889), (7, 3100508), (14, 1550254), (28, 775127), (61, 355796), (97, 223748), (122, 177898), (131, 165676), (194, 111874), (244, 88949), (262, 82838), (388, 55937), (427, 50828), (524, 41419), (679, 31964), (854, 25414), (917, 23668), (1358, 15982), (1708, 12707), (1834, 11834), (2716, 7991), (3668, 5917)]