21911554

素因数分解:

$2^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{2741}}^1$

素因数の和:3321

約数の個数: 16

約数和(自身を含む): 37642176

約数和(自身を除く): 15730622

約数列:

[1, 2, 7, 14, 571, 1142, 2741, 3997, 5482, 7994, 19187, 38374, 1565111, 3130222, 10955777, 21911554]

約数ペア:

[(1, 21911554), (2, 10955777), (7, 3130222), (14, 1565111), (571, 38374), (1142, 19187), (2741, 7994), (3997, 5482)]