16680213

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 54

約数和(自身を含む): 28663362

約数和(自身を除く): 11983149

約数列:

[1, 3, 9, 11, 17, 33, 51, 53, 99, 121, 153, 159, 187, 289, 363, 477, 561, 583, 867, 901, 1089, 1683, 1749, 2057, 2601, 2703, 3179, 5247, 6171, 6413, 8109, 9537, 9911, 15317, 18513, 19239, 28611, 29733, 34969, 45951, 57717, 89199, 104907, 109021, 137853, 168487, 314721, 327063, 505461, 981189, 1516383, 1853357, 5560071, 16680213]

約数ペア:

[(1, 16680213), (3, 5560071), (9, 1853357), (11, 1516383), (17, 981189), (33, 505461), (51, 327063), (53, 314721), (99, 168487), (121, 137853), (153, 109021), (159, 104907), (187, 89199), (289, 57717), (363, 45951), (477, 34969), (561, 29733), (583, 28611), (867, 19239), (901, 18513), (1089, 15317), (1683, 9911), (1749, 9537), (2057, 8109), (2601, 6413), (2703, 6171), (3179, 5247)]