19717767

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2437}}^1$

素因数の和:2503

約数の個数: 24

約数和(自身を含む): 30426240

約数和(自身を除く): 10708473

約数列:

[1, 3, 9, 29, 31, 87, 93, 261, 279, 899, 2437, 2697, 7311, 8091, 21933, 70673, 75547, 212019, 226641, 636057, 679923, 2190863, 6572589, 19717767]

約数ペア:

[(1, 19717767), (3, 6572589), (9, 2190863), (29, 679923), (31, 636057), (87, 226641), (93, 212019), (261, 75547), (279, 70673), (899, 21933), (2437, 8091), (2697, 7311)]