20955984

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1327}}^1$

素因数の和:1392

約数の個数: 80

約数和(自身を含む): 63234048

約数和(自身を除く): 42278064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 47, 48, 56, 84, 94, 112, 141, 168, 188, 282, 329, 336, 376, 564, 658, 752, 987, 1128, 1316, 1327, 1974, 2256, 2632, 2654, 3948, 3981, 5264, 5308, 7896, 7962, 9289, 10616, 15792, 15924, 18578, 21232, 27867, 31848, 37156, 55734, 62369, 63696, 74312, 111468, 124738, 148624, 187107, 222936, 249476, 374214, 436583, 445872, 498952, 748428, 873166, 997904, 1309749, 1496856, 1746332, 2619498, 2993712, 3492664, 5238996, 6985328, 10477992, 20955984]

約数ペア:

[(1, 20955984), (2, 10477992), (3, 6985328), (4, 5238996), (6, 3492664), (7, 2993712), (8, 2619498), (12, 1746332), (14, 1496856), (16, 1309749), (21, 997904), (24, 873166), (28, 748428), (42, 498952), (47, 445872), (48, 436583), (56, 374214), (84, 249476), (94, 222936), (112, 187107), (141, 148624), (168, 124738), (188, 111468), (282, 74312), (329, 63696), (336, 62369), (376, 55734), (564, 37156), (658, 31848), (752, 27867), (987, 21232), (1128, 18578), (1316, 15924), (1327, 15792), (1974, 10616), (2256, 9289), (2632, 7962), (2654, 7896), (3948, 5308), (3981, 5264)]