20947216

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4831}}^1$

素因数の和:5110

約数の個数: 20

約数和(自身を含む): 40743424

約数和(自身を除く): 19796208

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4831, 9662, 19324, 38648, 77296, 1309201, 2618402, 5236804, 10473608, 20947216]

約数ペア:

[(1, 20947216), (2, 10473608), (4, 5236804), (8, 2618402), (16, 1309201), (271, 77296), (542, 38648), (1084, 19324), (2168, 9662), (4336, 4831)]