20267728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97441}}^1$

素因数の和:97462

約数の個数: 20

約数和(自身を含む): 42289828

約数和(自身を除く): 22022100

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97441, 194882, 389764, 779528, 1266733, 1559056, 2533466, 5066932, 10133864, 20267728]

約数ペア:

[(1, 20267728), (2, 10133864), (4, 5066932), (8, 2533466), (13, 1559056), (16, 1266733), (26, 779528), (52, 389764), (104, 194882), (208, 97441)]