19357360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21997}}^1$

素因数の和:22021

約数の個数: 40

約数和(自身を含む): 49099536

約数和(自身を除く): 29742176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21997, 43994, 87988, 109985, 175976, 219970, 241967, 351952, 439940, 483934, 879880, 967868, 1209835, 1759760, 1935736, 2419670, 3871472, 4839340, 9678680, 19357360]

約数ペア:

[(1, 19357360), (2, 9678680), (4, 4839340), (5, 3871472), (8, 2419670), (10, 1935736), (11, 1759760), (16, 1209835), (20, 967868), (22, 879880), (40, 483934), (44, 439940), (55, 351952), (80, 241967), (88, 219970), (110, 175976), (176, 109985), (220, 87988), (440, 43994), (880, 21997)]