20915552

素因数分解:

$2^5\times 7^2\times {\mathrm{13339}}^1$

素因数の和:13363

約数の個数: 36

約数和(自身を含む): 47903940

約数和(自身を除く): 26988388

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13339, 26678, 53356, 93373, 106712, 186746, 213424, 373492, 426848, 653611, 746984, 1307222, 1493968, 2614444, 2987936, 5228888, 10457776, 20915552]

約数ペア:

[(1, 20915552), (2, 10457776), (4, 5228888), (7, 2987936), (8, 2614444), (14, 1493968), (16, 1307222), (28, 746984), (32, 653611), (49, 426848), (56, 373492), (98, 213424), (112, 186746), (196, 106712), (224, 93373), (392, 53356), (784, 26678), (1568, 13339)]