21487130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2417}}^1$

素因数の和:2558

約数の個数: 32

約数和(自身を含む): 44568576

約数和(自身を除く): 23081446

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 2417, 4445, 4834, 8890, 12085, 16919, 24170, 33838, 84595, 169190, 306959, 613918, 1534795, 2148713, 3069590, 4297426, 10743565, 21487130]

約数ペア:

[(1, 21487130), (2, 10743565), (5, 4297426), (7, 3069590), (10, 2148713), (14, 1534795), (35, 613918), (70, 306959), (127, 169190), (254, 84595), (635, 33838), (889, 24170), (1270, 16919), (1778, 12085), (2417, 8890), (4445, 4834)]