20197604

素因数分解:

$2^2\times 7^2\times {\mathrm{103049}}^1$

素因数の和:103067

約数の個数: 18

約数和(自身を含む): 41116950

約数和(自身を除く): 20919346

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 103049, 206098, 412196, 721343, 1442686, 2885372, 5049401, 10098802, 20197604]

約数ペア:

[(1, 20197604), (2, 10098802), (4, 5049401), (7, 2885372), (14, 1442686), (28, 721343), (49, 412196), (98, 206098), (196, 103049)]