18681992

素因数分解:

$2^3\times 7^1\times {\mathrm{449}}^1\times {\mathrm{743}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 21494008

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 449, 743, 898, 1486, 1796, 2972, 3143, 3592, 5201, 5944, 6286, 10402, 12572, 20804, 25144, 41608, 333607, 667214, 1334428, 2335249, 2668856, 4670498, 9340996, 18681992]

約数ペア:

[(1, 18681992), (2, 9340996), (4, 4670498), (7, 2668856), (8, 2335249), (14, 1334428), (28, 667214), (56, 333607), (449, 41608), (743, 25144), (898, 20804), (1486, 12572), (1796, 10402), (2972, 6286), (3143, 5944), (3592, 5201)]