20840463

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3604

約数の個数: 32

約数和(自身を含む): 36433920

約数和(自身を除く): 15593457

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3557, 5859, 10671, 24899, 32013, 74697, 96039, 110267, 224091, 330801, 672273, 771869, 992403, 2315607, 2977209, 6946821, 20840463]

約数ペア:

[(1, 20840463), (3, 6946821), (7, 2977209), (9, 2315607), (21, 992403), (27, 771869), (31, 672273), (63, 330801), (93, 224091), (189, 110267), (217, 96039), (279, 74697), (651, 32013), (837, 24899), (1953, 10671), (3557, 5859)]