20755665

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9413}}^1$

素因数の和:9438

約数の個数: 36

約数和(自身を含む): 41854644

約数和(自身を除く): 21098979

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9413, 28239, 47065, 65891, 84717, 141195, 197673, 329455, 423585, 461237, 593019, 988365, 1383711, 2306185, 2965095, 4151133, 6918555, 20755665]

約数ペア:

[(1, 20755665), (3, 6918555), (5, 4151133), (7, 2965095), (9, 2306185), (15, 1383711), (21, 988365), (35, 593019), (45, 461237), (49, 423585), (63, 329455), (105, 197673), (147, 141195), (245, 84717), (315, 65891), (441, 47065), (735, 28239), (2205, 9413)]