18778149

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1049}}^1$

素因数の和:1091

約数の個数: 40

約数和(自身を含む): 32016600

約数和(自身を除く): 13238451

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1049, 1053, 1377, 1989, 3147, 5967, 9441, 13637, 17833, 17901, 28323, 40911, 53499, 84969, 122733, 160497, 231829, 368199, 481491, 695487, 1104597, 1444473, 2086461, 6259383, 18778149]

約数ペア:

[(1, 18778149), (3, 6259383), (9, 2086461), (13, 1444473), (17, 1104597), (27, 695487), (39, 481491), (51, 368199), (81, 231829), (117, 160497), (153, 122733), (221, 84969), (351, 53499), (459, 40911), (663, 28323), (1049, 17901), (1053, 17833), (1377, 13637), (1989, 9441), (3147, 5967)]