42940161

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 70761600

約数和(自身を除く): 27821439

約数列:

[1, 3, 9, 11, 33, 41, 71, 99, 123, 149, 213, 369, 447, 451, 639, 781, 1341, 1353, 1639, 2343, 2911, 4059, 4917, 6109, 7029, 8733, 10579, 14751, 18327, 26199, 31737, 32021, 54981, 67199, 95211, 96063, 116369, 201597, 288189, 349107, 433739, 604791, 1047321, 1301217, 3903651, 4771129, 14313387, 42940161]

約数ペア:

[(1, 42940161), (3, 14313387), (9, 4771129), (11, 3903651), (33, 1301217), (41, 1047321), (71, 604791), (99, 433739), (123, 349107), (149, 288189), (213, 201597), (369, 116369), (447, 96063), (451, 95211), (639, 67199), (781, 54981), (1341, 32021), (1353, 31737), (1639, 26199), (2343, 18327), (2911, 14751), (4059, 10579), (4917, 8733), (6109, 7029)]