20749456

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14251}}^1$

素因数の和:14279

約数の個数: 40

約数和(自身を含む): 49482944

約数和(自身を除く): 28733488

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14251, 28502, 57004, 99757, 114008, 185263, 199514, 228016, 370526, 399028, 741052, 798056, 1296841, 1482104, 1596112, 2593682, 2964208, 5187364, 10374728, 20749456]

約数ペア:

[(1, 20749456), (2, 10374728), (4, 5187364), (7, 2964208), (8, 2593682), (13, 1596112), (14, 1482104), (16, 1296841), (26, 798056), (28, 741052), (52, 399028), (56, 370526), (91, 228016), (104, 199514), (112, 185263), (182, 114008), (208, 99757), (364, 57004), (728, 28502), (1456, 14251)]