20998096

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3989}}^1$

素因数の和:4051

約数の個数: 40

約数和(自身を含む): 47496960

約数和(自身を除く): 26498864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 3989, 5264, 7978, 15956, 27923, 31912, 55846, 63824, 111692, 187483, 223384, 374966, 446768, 749932, 1312381, 1499864, 2624762, 2999728, 5249524, 10499048, 20998096]

約数ペア:

[(1, 20998096), (2, 10499048), (4, 5249524), (7, 2999728), (8, 2624762), (14, 1499864), (16, 1312381), (28, 749932), (47, 446768), (56, 374966), (94, 223384), (112, 187483), (188, 111692), (329, 63824), (376, 55846), (658, 31912), (752, 27923), (1316, 15956), (2632, 7978), (3989, 5264)]