20403117

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2633}}^1$

素因数の和:2690

約数の個数: 32

約数和(自身を含む): 35400960

約数和(自身を除く): 14997843

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 123, 189, 287, 369, 861, 1107, 2583, 2633, 7749, 7899, 18431, 23697, 55293, 71091, 107953, 165879, 323859, 497637, 755671, 971577, 2267013, 2914731, 6801039, 20403117]

約数ペア:

[(1, 20403117), (3, 6801039), (7, 2914731), (9, 2267013), (21, 971577), (27, 755671), (41, 497637), (63, 323859), (123, 165879), (189, 107953), (287, 71091), (369, 55293), (861, 23697), (1107, 18431), (2583, 7899), (2633, 7749)]