20662803

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 17353197

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 59, 63, 109, 119, 153, 177, 189, 327, 357, 413, 459, 531, 763, 981, 1003, 1071, 1239, 1593, 1853, 2289, 2943, 3009, 3213, 3717, 5559, 6431, 6867, 7021, 9027, 11151, 12971, 16677, 19293, 20601, 21063, 27081, 38913, 45017, 50031, 57879, 63189, 109327, 116739, 135051, 173637, 189567, 327981, 350217, 405153, 765289, 983943, 1215459, 2295867, 2951829, 6887601, 20662803]

約数ペア:

[(1, 20662803), (3, 6887601), (7, 2951829), (9, 2295867), (17, 1215459), (21, 983943), (27, 765289), (51, 405153), (59, 350217), (63, 327981), (109, 189567), (119, 173637), (153, 135051), (177, 116739), (189, 109327), (327, 63189), (357, 57879), (413, 50031), (459, 45017), (531, 38913), (763, 27081), (981, 21063), (1003, 20601), (1071, 19293), (1239, 16677), (1593, 12971), (1853, 11151), (2289, 9027), (2943, 7021), (3009, 6867), (3213, 6431), (3717, 5559)]