21292810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27653}}^1$

素因数の和:27678

約数の個数: 32

約数和(自身を含む): 47786112

約数和(自身を除く): 26493302

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27653, 55306, 138265, 193571, 276530, 304183, 387142, 608366, 967855, 1520915, 1935710, 2129281, 3041830, 4258562, 10646405, 21292810]

約数ペア:

[(1, 21292810), (2, 10646405), (5, 4258562), (7, 3041830), (10, 2129281), (11, 1935710), (14, 1520915), (22, 967855), (35, 608366), (55, 387142), (70, 304183), (77, 276530), (110, 193571), (154, 138265), (385, 55306), (770, 27653)]