19905804

素因数分解:

$2^2\times 3^3\times {\mathrm{149}}^1\times {\mathrm{1237}}^1$

素因数の和:1399

約数の個数: 48

約数和(自身を含む): 51996000

約数和(自身を除く): 32090196

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 149, 298, 447, 596, 894, 1237, 1341, 1788, 2474, 2682, 3711, 4023, 4948, 5364, 7422, 8046, 11133, 14844, 16092, 22266, 33399, 44532, 66798, 133596, 184313, 368626, 552939, 737252, 1105878, 1658817, 2211756, 3317634, 4976451, 6635268, 9952902, 19905804]

約数ペア:

[(1, 19905804), (2, 9952902), (3, 6635268), (4, 4976451), (6, 3317634), (9, 2211756), (12, 1658817), (18, 1105878), (27, 737252), (36, 552939), (54, 368626), (108, 184313), (149, 133596), (298, 66798), (447, 44532), (596, 33399), (894, 22266), (1237, 16092), (1341, 14844), (1788, 11133), (2474, 8046), (2682, 7422), (3711, 5364), (4023, 4948)]