19867210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1009}}^1$

素因数の和:1206

約数の個数: 32

約数和(自身を含む): 39268800

約数和(自身を除く): 19401590

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1009, 1790, 1969, 2018, 3938, 5045, 9845, 10090, 11099, 19690, 22198, 55495, 110990, 180611, 361222, 903055, 1806110, 1986721, 3973442, 9933605, 19867210]

約数ペア:

[(1, 19867210), (2, 9933605), (5, 3973442), (10, 1986721), (11, 1806110), (22, 903055), (55, 361222), (110, 180611), (179, 110990), (358, 55495), (895, 22198), (1009, 19690), (1790, 11099), (1969, 10090), (2018, 9845), (3938, 5045)]