20521862

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1061}}^1$

素因数の和:1591

約数の個数: 16

約数和(自身を含む): 32497200

約数和(自身を除く): 11975338

約数列:

[1, 2, 19, 38, 509, 1018, 1061, 2122, 9671, 19342, 20159, 40318, 540049, 1080098, 10260931, 20521862]

約数ペア:

[(1, 20521862), (2, 10260931), (19, 1080098), (38, 540049), (509, 40318), (1018, 20159), (1061, 19342), (2122, 9671)]