21072170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4493}}^1$

素因数の和:4574

約数の個数: 32

約数和(自身を含む): 44005248

約数和(自身を除く): 22933078

約数列:

[1, 2, 5, 7, 10, 14, 35, 67, 70, 134, 335, 469, 670, 938, 2345, 4493, 4690, 8986, 22465, 31451, 44930, 62902, 157255, 301031, 314510, 602062, 1505155, 2107217, 3010310, 4214434, 10536085, 21072170]

約数ペア:

[(1, 21072170), (2, 10536085), (5, 4214434), (7, 3010310), (10, 2107217), (14, 1505155), (35, 602062), (67, 314510), (70, 301031), (134, 157255), (335, 62902), (469, 44930), (670, 31451), (938, 22465), (2345, 8986), (4493, 4690)]