19121780

素因数分解:

$2^2\times 5^1\times {\mathrm{577}}^1\times {\mathrm{1657}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 40249608

約数和(自身を除く): 21127828

約数列:

[1, 2, 4, 5, 10, 20, 577, 1154, 1657, 2308, 2885, 3314, 5770, 6628, 8285, 11540, 16570, 33140, 956089, 1912178, 3824356, 4780445, 9560890, 19121780]

約数ペア:

[(1, 19121780), (2, 9560890), (4, 4780445), (5, 3824356), (10, 1912178), (20, 956089), (577, 33140), (1154, 16570), (1657, 11540), (2308, 8285), (2885, 6628), (3314, 5770)]