221498255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{797}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 301529088

約数和(自身を除く): 80030833

約数列:

[1, 5, 11, 31, 55, 155, 163, 341, 797, 815, 1705, 1793, 3985, 5053, 8767, 8965, 24707, 25265, 43835, 55583, 123535, 129911, 271777, 277915, 649555, 1358885, 1429021, 4027241, 7145105, 20136205, 44299651, 221498255]

約数ペア:

[(1, 221498255), (5, 44299651), (11, 20136205), (31, 7145105), (55, 4027241), (155, 1429021), (163, 1358885), (341, 649555), (797, 277915), (815, 271777), (1705, 129911), (1793, 123535), (3985, 55583), (5053, 43835), (8767, 25265), (8965, 24707)]