18219992

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1459}}^1$

素因数の和:1695

約数の個数: 32

約数和(自身を含む): 39244800

約数和(自身を除く): 21024808

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1459, 1561, 1784, 2918, 3122, 5836, 6244, 10213, 11672, 12488, 20426, 40852, 81704, 325357, 650714, 1301428, 2277499, 2602856, 4554998, 9109996, 18219992]

約数ペア:

[(1, 18219992), (2, 9109996), (4, 4554998), (7, 2602856), (8, 2277499), (14, 1301428), (28, 650714), (56, 325357), (223, 81704), (446, 40852), (892, 20426), (1459, 12488), (1561, 11672), (1784, 10213), (2918, 6244), (3122, 5836)]