21986538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{523489}}^1$

素因数の和:523501

約数の個数: 16

約数和(自身を含む): 50255040

約数和(自身を除く): 28268502

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 523489, 1046978, 1570467, 3140934, 3664423, 7328846, 10993269, 21986538]

約数ペア:

[(1, 21986538), (2, 10993269), (3, 7328846), (6, 3664423), (7, 3140934), (14, 1570467), (21, 1046978), (42, 523489)]