20296912

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1051}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 42265152

約数和(自身を除く): 21968240

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1051, 1136, 1207, 2102, 2414, 4204, 4828, 8408, 9656, 16816, 17867, 19312, 35734, 71468, 74621, 142936, 149242, 285872, 298484, 596968, 1193936, 1268557, 2537114, 5074228, 10148456, 20296912]

約数ペア:

[(1, 20296912), (2, 10148456), (4, 5074228), (8, 2537114), (16, 1268557), (17, 1193936), (34, 596968), (68, 298484), (71, 285872), (136, 149242), (142, 142936), (272, 74621), (284, 71468), (568, 35734), (1051, 19312), (1136, 17867), (1207, 16816), (2102, 9656), (2414, 8408), (4204, 4828)]