21689872

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{6079}}^1$

素因数の和:6310

約数の個数: 20

約数和(自身を含む): 42219520

約数和(自身を除く): 20529648

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 6079, 12158, 24316, 48632, 97264, 1355617, 2711234, 5422468, 10844936, 21689872]

約数ペア:

[(1, 21689872), (2, 10844936), (4, 5422468), (8, 2711234), (16, 1355617), (223, 97264), (446, 48632), (892, 24316), (1784, 12158), (3568, 6079)]