21382128

素因数分解:

$2^4\times 3^2\times {\mathrm{83}}^1\times {\mathrm{1789}}^1$

素因数の和:1886

約数の個数: 60

約数和(自身を含む): 60595080

約数和(自身を除く): 39212952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 83, 144, 166, 249, 332, 498, 664, 747, 996, 1328, 1494, 1789, 1992, 2988, 3578, 3984, 5367, 5976, 7156, 10734, 11952, 14312, 16101, 21468, 28624, 32202, 42936, 64404, 85872, 128808, 148487, 257616, 296974, 445461, 593948, 890922, 1187896, 1336383, 1781844, 2375792, 2672766, 3563688, 5345532, 7127376, 10691064, 21382128]

約数ペア:

[(1, 21382128), (2, 10691064), (3, 7127376), (4, 5345532), (6, 3563688), (8, 2672766), (9, 2375792), (12, 1781844), (16, 1336383), (18, 1187896), (24, 890922), (36, 593948), (48, 445461), (72, 296974), (83, 257616), (144, 148487), (166, 128808), (249, 85872), (332, 64404), (498, 42936), (664, 32202), (747, 28624), (996, 21468), (1328, 16101), (1494, 14312), (1789, 11952), (1992, 10734), (2988, 7156), (3578, 5976), (3984, 5367)]