20984768

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1511}}^1$

素因数の和:1561

約数の個数: 56

約数和(自身を含む): 49158144

約数和(自身を除く): 28173376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1511, 1736, 1984, 3022, 3472, 6044, 6944, 10577, 12088, 13888, 21154, 24176, 42308, 46841, 48352, 84616, 93682, 96704, 169232, 187364, 327887, 338464, 374728, 655774, 676928, 749456, 1311548, 1498912, 2623096, 2997824, 5246192, 10492384, 20984768]

約数ペア:

[(1, 20984768), (2, 10492384), (4, 5246192), (7, 2997824), (8, 2623096), (14, 1498912), (16, 1311548), (28, 749456), (31, 676928), (32, 655774), (56, 374728), (62, 338464), (64, 327887), (112, 187364), (124, 169232), (217, 96704), (224, 93682), (248, 84616), (434, 48352), (448, 46841), (496, 42308), (868, 24176), (992, 21154), (1511, 13888), (1736, 12088), (1984, 10577), (3022, 6944), (3472, 6044)]