21486861

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{751}}^1$

素因数の和:802

約数の個数: 36

約数和(自身を含む): 36014784

約数和(自身を除く): 14527923

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 289, 561, 751, 867, 1683, 2253, 2601, 3179, 6759, 8261, 9537, 12767, 24783, 28611, 38301, 74349, 114903, 140437, 217039, 421311, 651117, 1263933, 1953351, 2387429, 7162287, 21486861]

約数ペア:

[(1, 21486861), (3, 7162287), (9, 2387429), (11, 1953351), (17, 1263933), (33, 651117), (51, 421311), (99, 217039), (153, 140437), (187, 114903), (289, 74349), (561, 38301), (751, 28611), (867, 24783), (1683, 12767), (2253, 9537), (2601, 8261), (3179, 6759)]