21263284

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6967}}^1$

素因数の和:7087

約数の個数: 24

約数和(自身を含む): 42922880

約数和(自身を除く): 21659596

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6967, 13934, 27868, 48769, 97538, 195076, 759403, 1518806, 3037612, 5315821, 10631642, 21263284]

約数ペア:

[(1, 21263284), (2, 10631642), (4, 5315821), (7, 3037612), (14, 1518806), (28, 759403), (109, 195076), (218, 97538), (436, 48769), (763, 27868), (1526, 13934), (3052, 6967)]