21766563

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2953}}^1$

素因数の和:2985

約数の個数: 40

約数和(自身を含む): 40032608

約数和(自身を除く): 18266045

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2953, 7371, 8859, 20671, 26577, 38389, 62013, 79731, 115167, 186039, 239193, 268723, 345501, 558117, 806169, 1036503, 1674351, 2418507, 3109509, 7255521, 21766563]

約数ペア:

[(1, 21766563), (3, 7255521), (7, 3109509), (9, 2418507), (13, 1674351), (21, 1036503), (27, 806169), (39, 558117), (63, 345501), (81, 268723), (91, 239193), (117, 186039), (189, 115167), (273, 79731), (351, 62013), (567, 38389), (819, 26577), (1053, 20671), (2457, 8859), (2953, 7371)]