81378738

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{28081}}^1$

素因数の和:28119

約数の個数: 48

約数和(自身を含む): 210278016

約数和(自身を除く): 128899278

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 322, 414, 483, 966, 1449, 2898, 28081, 56162, 84243, 168486, 196567, 252729, 393134, 505458, 589701, 645863, 1179402, 1291726, 1769103, 1937589, 3538206, 3875178, 4521041, 5812767, 9042082, 11625534, 13563123, 27126246, 40689369, 81378738]

約数ペア:

[(1, 81378738), (2, 40689369), (3, 27126246), (6, 13563123), (7, 11625534), (9, 9042082), (14, 5812767), (18, 4521041), (21, 3875178), (23, 3538206), (42, 1937589), (46, 1769103), (63, 1291726), (69, 1179402), (126, 645863), (138, 589701), (161, 505458), (207, 393134), (322, 252729), (414, 196567), (483, 168486), (966, 84243), (1449, 56162), (2898, 28081)]