21105512

素因数分解:

$2^3\times {\mathrm{61}}^2\times {\mathrm{709}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 40288950

約数和(自身を除く): 19183438

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 709, 1418, 2836, 3721, 5672, 7442, 14884, 29768, 43249, 86498, 172996, 345992, 2638189, 5276378, 10552756, 21105512]

約数ペア:

[(1, 21105512), (2, 10552756), (4, 5276378), (8, 2638189), (61, 345992), (122, 172996), (244, 86498), (488, 43249), (709, 29768), (1418, 14884), (2836, 7442), (3721, 5672)]