64754431

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 78319824

約数和(自身を除く): 13565393

約数列:

[1, 7, 43, 49, 73, 301, 421, 511, 2107, 2947, 3139, 3577, 18103, 20629, 21973, 30733, 126721, 153811, 215131, 887047, 1321519, 1505917, 9250633, 64754431]

約数ペア:

[(1, 64754431), (7, 9250633), (43, 1505917), (49, 1321519), (73, 887047), (301, 215131), (421, 153811), (511, 126721), (2107, 30733), (2947, 21973), (3139, 20629), (3577, 18103)]