208163977

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 254361600

約数和(自身を除く): 46197623

約数列:

[1, 7, 31, 59, 71, 217, 229, 413, 497, 1603, 1829, 2201, 4189, 7099, 12803, 13511, 15407, 16259, 29323, 49693, 94577, 113813, 129859, 418841, 504029, 909013, 959281, 2931887, 3528203, 6714967, 29737711, 208163977]

約数ペア:

[(1, 208163977), (7, 29737711), (31, 6714967), (59, 3528203), (71, 2931887), (217, 959281), (229, 909013), (413, 504029), (497, 418841), (1603, 129859), (1829, 113813), (2201, 94577), (4189, 49693), (7099, 29323), (12803, 16259), (13511, 15407)]