19780766

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{1031}}^1$

素因数の和:1267

約数の個数: 16

約数和(自身を含む): 30427488

約数和(自身を除く): 10646722

約数列:

[1, 2, 53, 106, 181, 362, 1031, 2062, 9593, 19186, 54643, 109286, 186611, 373222, 9890383, 19780766]

約数ペア:

[(1, 19780766), (2, 9890383), (53, 373222), (106, 186611), (181, 109286), (362, 54643), (1031, 19186), (2062, 9593)]