20613124

素因数分解:

$2^2\times 7^2\times {\mathrm{251}}^1\times {\mathrm{419}}^1$

素因数の和:688

約数の個数: 36

約数和(自身を含む): 42230160

約数和(自身を除く): 21617036

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 251, 419, 502, 838, 1004, 1676, 1757, 2933, 3514, 5866, 7028, 11732, 12299, 20531, 24598, 41062, 49196, 82124, 105169, 210338, 420676, 736183, 1472366, 2944732, 5153281, 10306562, 20613124]

約数ペア:

[(1, 20613124), (2, 10306562), (4, 5153281), (7, 2944732), (14, 1472366), (28, 736183), (49, 420676), (98, 210338), (196, 105169), (251, 82124), (419, 49196), (502, 41062), (838, 24598), (1004, 20531), (1676, 12299), (1757, 11732), (2933, 7028), (3514, 5866)]