20818746

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{88969}}^1$

素因数の和:88990

約数の個数: 24

約数和(自身を含む): 48577620

約数和(自身を除く): 27758874

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 88969, 177938, 266907, 533814, 800721, 1156597, 1601442, 2313194, 3469791, 6939582, 10409373, 20818746]

約数ペア:

[(1, 20818746), (2, 10409373), (3, 6939582), (6, 3469791), (9, 2313194), (13, 1601442), (18, 1156597), (26, 800721), (39, 533814), (78, 266907), (117, 177938), (234, 88969)]