21574454

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{3907}}^1$

素因数の和:4171

約数の個数: 16

約数和(自身を含む): 35453376

約数和(自身を除く): 13878922

約数列:

[1, 2, 11, 22, 251, 502, 2761, 3907, 5522, 7814, 42977, 85954, 980657, 1961314, 10787227, 21574454]

約数ペア:

[(1, 21574454), (2, 10787227), (11, 1961314), (22, 980657), (251, 85954), (502, 42977), (2761, 7814), (3907, 5522)]