20154141

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2030

約数の個数: 36

約数和(自身を含む): 35354592

約数和(自身を除く): 15200451

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 1987, 3381, 5961, 10143, 13909, 17883, 41727, 45701, 97363, 125181, 137103, 292089, 319907, 411309, 876267, 959721, 2239349, 2879163, 6718047, 20154141]

約数ペア:

[(1, 20154141), (3, 6718047), (7, 2879163), (9, 2239349), (21, 959721), (23, 876267), (49, 411309), (63, 319907), (69, 292089), (147, 137103), (161, 125181), (207, 97363), (441, 45701), (483, 41727), (1127, 17883), (1449, 13909), (1987, 10143), (3381, 5961)]