20976174

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:753

約数の個数: 48

約数和(自身を含む): 47711664

約数和(自身を除く): 26735490

約数列:

[1, 2, 3, 6, 9, 18, 41, 43, 82, 86, 123, 129, 246, 258, 369, 387, 661, 738, 774, 1322, 1763, 1983, 3526, 3966, 5289, 5949, 10578, 11898, 15867, 27101, 28423, 31734, 54202, 56846, 81303, 85269, 162606, 170538, 243909, 255807, 487818, 511614, 1165343, 2330686, 3496029, 6992058, 10488087, 20976174]

約数ペア:

[(1, 20976174), (2, 10488087), (3, 6992058), (6, 3496029), (9, 2330686), (18, 1165343), (41, 511614), (43, 487818), (82, 255807), (86, 243909), (123, 170538), (129, 162606), (246, 85269), (258, 81303), (369, 56846), (387, 54202), (661, 31734), (738, 28423), (774, 27101), (1322, 15867), (1763, 11898), (1983, 10578), (3526, 5949), (3966, 5289)]