20385498

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 29380902

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 47, 69, 94, 138, 141, 161, 282, 322, 329, 449, 483, 658, 898, 966, 987, 1081, 1347, 1974, 2162, 2694, 3143, 3243, 6286, 6486, 7567, 9429, 10327, 15134, 18858, 20654, 21103, 22701, 30981, 42206, 45402, 61962, 63309, 72289, 126618, 144578, 147721, 216867, 295442, 433734, 443163, 485369, 886326, 970738, 1456107, 2912214, 3397583, 6795166, 10192749, 20385498]

約数ペア:

[(1, 20385498), (2, 10192749), (3, 6795166), (6, 3397583), (7, 2912214), (14, 1456107), (21, 970738), (23, 886326), (42, 485369), (46, 443163), (47, 433734), (69, 295442), (94, 216867), (138, 147721), (141, 144578), (161, 126618), (282, 72289), (322, 63309), (329, 61962), (449, 45402), (483, 42206), (658, 30981), (898, 22701), (966, 21103), (987, 20654), (1081, 18858), (1347, 15134), (1974, 10327), (2162, 9429), (2694, 7567), (3143, 6486), (3243, 6286)]