19181956

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{487}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 34569920

約数和(自身を除く): 15387964

約数列:

[1, 2, 4, 43, 86, 172, 229, 458, 487, 916, 974, 1948, 9847, 19694, 20941, 39388, 41882, 83764, 111523, 223046, 446092, 4795489, 9590978, 19181956]

約数ペア:

[(1, 19181956), (2, 9590978), (4, 4795489), (43, 446092), (86, 223046), (172, 111523), (229, 83764), (458, 41882), (487, 39388), (916, 20941), (974, 19694), (1948, 9847)]