18883984

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1213}}^1$

素因数の和:1367

約数の個数: 40

約数和(自身を含む): 42150080

約数和(自身を除く): 23266096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1213, 1946, 2224, 2426, 3892, 4852, 7784, 8491, 9704, 15568, 16982, 19408, 33964, 67928, 135856, 168607, 337214, 674428, 1180249, 1348856, 2360498, 2697712, 4720996, 9441992, 18883984]

約数ペア:

[(1, 18883984), (2, 9441992), (4, 4720996), (7, 2697712), (8, 2360498), (14, 1348856), (16, 1180249), (28, 674428), (56, 337214), (112, 168607), (139, 135856), (278, 67928), (556, 33964), (973, 19408), (1112, 16982), (1213, 15568), (1946, 9704), (2224, 8491), (2426, 7784), (3892, 4852)]