20487574

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1\times {\mathrm{557}}^1$

素因数の和:959

約数の個数: 16

約数和(自身を含む): 31457808

約数和(自身を除く): 10970234

約数列:

[1, 2, 53, 106, 347, 557, 694, 1114, 18391, 29521, 36782, 59042, 193279, 386558, 10243787, 20487574]

約数ペア:

[(1, 20487574), (2, 10243787), (53, 386558), (106, 193279), (347, 59042), (557, 36782), (694, 29521), (1114, 18391)]