20658807

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{853}}^1$

素因数の和:901

約数の個数: 40

約数和(自身を含む): 34720224

約数和(自身を除く): 14061417

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 299, 351, 621, 853, 897, 1053, 1863, 2559, 2691, 7677, 8073, 11089, 19619, 23031, 24219, 33267, 58857, 69093, 99801, 176571, 255047, 299403, 529713, 765141, 898209, 1589139, 2295423, 6886269, 20658807]

約数ペア:

[(1, 20658807), (3, 6886269), (9, 2295423), (13, 1589139), (23, 898209), (27, 765141), (39, 529713), (69, 299403), (81, 255047), (117, 176571), (207, 99801), (299, 69093), (351, 58857), (621, 33267), (853, 24219), (897, 23031), (1053, 19619), (1863, 11089), (2559, 8073), (2691, 7677)]