20913536

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1373}}^1$

素因数の和:1411

約数の個数: 64

約数和(自身を含む): 50453280

約数和(自身を除く): 29539744

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 224, 238, 272, 448, 476, 544, 896, 952, 1088, 1373, 1904, 2176, 2746, 3808, 5492, 7616, 9611, 10984, 15232, 19222, 21968, 23341, 38444, 43936, 46682, 76888, 87872, 93364, 153776, 163387, 175744, 186728, 307552, 326774, 373456, 615104, 653548, 746912, 1230208, 1307096, 1493824, 2614192, 2987648, 5228384, 10456768, 20913536]

約数ペア:

[(1, 20913536), (2, 10456768), (4, 5228384), (7, 2987648), (8, 2614192), (14, 1493824), (16, 1307096), (17, 1230208), (28, 746912), (32, 653548), (34, 615104), (56, 373456), (64, 326774), (68, 307552), (112, 186728), (119, 175744), (128, 163387), (136, 153776), (224, 93364), (238, 87872), (272, 76888), (448, 46682), (476, 43936), (544, 38444), (896, 23341), (952, 21968), (1088, 19222), (1373, 15232), (1904, 10984), (2176, 9611), (2746, 7616), (3808, 5492)]