20742369

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{937}}^1$

素因数の和:1144

約数の個数: 16

約数和(自身を含む): 28455168

約数和(自身を除く): 7712799

約数列:

[1, 3, 47, 141, 157, 471, 937, 2811, 7379, 22137, 44039, 132117, 147109, 441327, 6914123, 20742369]

約数ペア:

[(1, 20742369), (3, 6914123), (47, 441327), (141, 147109), (157, 132117), (471, 44039), (937, 22137), (2811, 7379)]