18718783216

素因数分解:

$2^4\times 7^3\times {\mathrm{3410857}}^1$

素因数の和:3410886

約数の個数: 40

約数和(自身を含む): 42294639200

約数和(自身を除く): 23575855984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 5488, 3410857, 6821714, 13643428, 23875999, 27286856, 47751998, 54573712, 95503996, 167131993, 191007992, 334263986, 382015984, 668527972, 1169923951, 1337055944, 2339847902, 2674111888, 4679695804, 9359391608, 18718783216]

約数ペア:

[(1, 18718783216), (2, 9359391608), (4, 4679695804), (7, 2674111888), (8, 2339847902), (14, 1337055944), (16, 1169923951), (28, 668527972), (49, 382015984), (56, 334263986), (98, 191007992), (112, 167131993), (196, 95503996), (343, 54573712), (392, 47751998), (686, 27286856), (784, 23875999), (1372, 13643428), (2744, 6821714), (5488, 3410857)]