21095866

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:690

約数の個数: 24

約数和(自身を含む): 35048160

約数和(自身を除く): 13952294

約数列:

[1, 2, 11, 22, 121, 179, 242, 358, 487, 974, 1969, 3938, 5357, 10714, 21659, 43318, 58927, 87173, 117854, 174346, 958903, 1917806, 10547933, 21095866]

約数ペア:

[(1, 21095866), (2, 10547933), (11, 1917806), (22, 958903), (121, 174346), (179, 117854), (242, 87173), (358, 58927), (487, 43318), (974, 21659), (1969, 10714), (3938, 5357)]