172538639

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1367}}^1$

素因数の和:1479

約数の個数: 32

約数和(自身を含む): 226759680

約数和(自身を除く): 54221041

約数列:

[1, 7, 13, 19, 73, 91, 133, 247, 511, 949, 1367, 1387, 1729, 6643, 9569, 9709, 17771, 18031, 25973, 99791, 124397, 126217, 181811, 337649, 698537, 1297283, 1896029, 2363543, 9080981, 13272203, 24648377, 172538639]

約数ペア:

[(1, 172538639), (7, 24648377), (13, 13272203), (19, 9080981), (73, 2363543), (91, 1896029), (133, 1297283), (247, 698537), (511, 337649), (949, 181811), (1367, 126217), (1387, 124397), (1729, 99791), (6643, 25973), (9569, 18031), (9709, 17771)]