20607723

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 34384000

約数和(自身を除く): 13776277

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 139, 153, 171, 289, 323, 417, 459, 513, 867, 969, 1251, 2363, 2601, 2641, 2907, 3753, 5491, 7089, 7803, 7923, 8721, 16473, 21267, 23769, 40171, 44897, 49419, 63801, 71307, 120513, 134691, 148257, 361539, 404073, 763249, 1084617, 1212219, 2289747, 6869241, 20607723]

約数ペア:

[(1, 20607723), (3, 6869241), (9, 2289747), (17, 1212219), (19, 1084617), (27, 763249), (51, 404073), (57, 361539), (139, 148257), (153, 134691), (171, 120513), (289, 71307), (323, 63801), (417, 49419), (459, 44897), (513, 40171), (867, 23769), (969, 21267), (1251, 16473), (2363, 8721), (2601, 7923), (2641, 7803), (2907, 7089), (3753, 5491)]