18688936

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5471}}^1$

素因数の和:5545

約数の個数: 32

約数和(自身を含む): 40711680

約数和(自身を除く): 22022744

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 5471, 10942, 21884, 38297, 43768, 76594, 153188, 306376, 333731, 667462, 1334924, 2336117, 2669848, 4672234, 9344468, 18688936]

約数ペア:

[(1, 18688936), (2, 9344468), (4, 4672234), (7, 2669848), (8, 2336117), (14, 1334924), (28, 667462), (56, 333731), (61, 306376), (122, 153188), (244, 76594), (427, 43768), (488, 38297), (854, 21884), (1708, 10942), (3416, 5471)]