21006944

素因数分解:

$2^5\times 7^1\times {\mathrm{191}}^1\times {\mathrm{491}}^1$

素因数の和:699

約数の個数: 48

約数和(自身を含む): 47609856

約数和(自身を除く): 26602912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 191, 224, 382, 491, 764, 982, 1337, 1528, 1964, 2674, 3056, 3437, 3928, 5348, 6112, 6874, 7856, 10696, 13748, 15712, 21392, 27496, 42784, 54992, 93781, 109984, 187562, 375124, 656467, 750248, 1312934, 1500496, 2625868, 3000992, 5251736, 10503472, 21006944]

約数ペア:

[(1, 21006944), (2, 10503472), (4, 5251736), (7, 3000992), (8, 2625868), (14, 1500496), (16, 1312934), (28, 750248), (32, 656467), (56, 375124), (112, 187562), (191, 109984), (224, 93781), (382, 54992), (491, 42784), (764, 27496), (982, 21392), (1337, 15712), (1528, 13748), (1964, 10696), (2674, 7856), (3056, 6874), (3437, 6112), (3928, 5348)]