19947856

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12853}}^1$

素因数の和:12958

約数の個数: 20

約数和(自身を含む): 39050452

約数和(自身を除く): 19102596

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12853, 25706, 51412, 102824, 205648, 1246741, 2493482, 4986964, 9973928, 19947856]

約数ペア:

[(1, 19947856), (2, 9973928), (4, 4986964), (8, 2493482), (16, 1246741), (97, 205648), (194, 102824), (388, 51412), (776, 25706), (1552, 12853)]