20386444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6427}}^1$

素因数の和:6505

約数の個数: 24

約数和(自身を含む): 39056528

約数和(自身を除く): 18670084

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6427, 12854, 25708, 83551, 167102, 334204, 392047, 784094, 1568188, 5096611, 10193222, 20386444]

約数ペア:

[(1, 20386444), (2, 10193222), (4, 5096611), (13, 1568188), (26, 784094), (52, 392047), (61, 334204), (122, 167102), (244, 83551), (793, 25708), (1586, 12854), (3172, 6427)]