20890002

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{269}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 49066560

約数和(自身を除く): 28176558

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 269, 301, 538, 602, 807, 903, 1614, 1806, 1849, 1883, 3698, 3766, 5547, 5649, 11094, 11298, 11567, 12943, 23134, 25886, 34701, 38829, 69402, 77658, 80969, 161938, 242907, 485814, 497381, 994762, 1492143, 2984286, 3481667, 6963334, 10445001, 20890002]

約数ペア:

[(1, 20890002), (2, 10445001), (3, 6963334), (6, 3481667), (7, 2984286), (14, 1492143), (21, 994762), (42, 497381), (43, 485814), (86, 242907), (129, 161938), (258, 80969), (269, 77658), (301, 69402), (538, 38829), (602, 34701), (807, 25886), (903, 23134), (1614, 12943), (1806, 11567), (1849, 11298), (1883, 11094), (3698, 5649), (3766, 5547)]