21206504

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1759}}^1$

素因数の和:1913

約数の個数: 32

約数和(自身を含む): 43718400

約数和(自身を除く): 22511896

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 137, 274, 548, 1096, 1507, 1759, 3014, 3518, 6028, 7036, 12056, 14072, 19349, 38698, 77396, 154792, 240983, 481966, 963932, 1927864, 2650813, 5301626, 10603252, 21206504]

約数ペア:

[(1, 21206504), (2, 10603252), (4, 5301626), (8, 2650813), (11, 1927864), (22, 963932), (44, 481966), (88, 240983), (137, 154792), (274, 77396), (548, 38698), (1096, 19349), (1507, 14072), (1759, 12056), (3014, 7036), (3518, 6028)]