2101990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:312

約数の個数: 32

約数和(自身を含む): 4191264

約数和(自身を除く): 2089274

約数列:

[1, 2, 5, 10, 11, 22, 55, 97, 110, 194, 197, 394, 485, 970, 985, 1067, 1970, 2134, 2167, 4334, 5335, 10670, 10835, 19109, 21670, 38218, 95545, 191090, 210199, 420398, 1050995, 2101990]

約数ペア:

[(1, 2101990), (2, 1050995), (5, 420398), (10, 210199), (11, 191090), (22, 95545), (55, 38218), (97, 21670), (110, 19109), (194, 10835), (197, 10670), (394, 5335), (485, 4334), (970, 2167), (985, 2134), (1067, 1970)]