21557756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{5903}}^1$

素因数の和:6001

約数の個数: 24

約数和(自身を含む): 41658624

約数和(自身を除く): 20100868

約数列:

[1, 2, 4, 11, 22, 44, 83, 166, 332, 913, 1826, 3652, 5903, 11806, 23612, 64933, 129866, 259732, 489949, 979898, 1959796, 5389439, 10778878, 21557756]

約数ペア:

[(1, 21557756), (2, 10778878), (4, 5389439), (11, 1959796), (22, 979898), (44, 489949), (83, 259732), (166, 129866), (332, 64933), (913, 23612), (1826, 11806), (3652, 5903)]