19912310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1153}}^1$

素因数の和:1328

約数の個数: 32

約数和(自身を含む): 39383712

約数和(自身を除く): 19471402

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 157, 314, 785, 1153, 1570, 1727, 2306, 3454, 5765, 8635, 11530, 12683, 17270, 25366, 63415, 126830, 181021, 362042, 905105, 1810210, 1991231, 3982462, 9956155, 19912310]

約数ペア:

[(1, 19912310), (2, 9956155), (5, 3982462), (10, 1991231), (11, 1810210), (22, 905105), (55, 362042), (110, 181021), (157, 126830), (314, 63415), (785, 25366), (1153, 17270), (1570, 12683), (1727, 11530), (2306, 8635), (3454, 5765)]