20398784

素因数分解:

$2^6\times 7^1\times {\mathrm{45533}}^1$

素因数の和:45552

約数の個数: 28

約数和(自身を含む): 46262544

約数和(自身を除く): 25863760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 45533, 91066, 182132, 318731, 364264, 637462, 728528, 1274924, 1457056, 2549848, 2914112, 5099696, 10199392, 20398784]

約数ペア:

[(1, 20398784), (2, 10199392), (4, 5099696), (7, 2914112), (8, 2549848), (14, 1457056), (16, 1274924), (28, 728528), (32, 637462), (56, 364264), (64, 318731), (112, 182132), (224, 91066), (448, 45533)]