20678942

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{613}}^1$

素因数の和:883

約数の個数: 16

約数和(自身を含む): 31564512

約数和(自身を除く): 10885570

約数列:

[1, 2, 101, 167, 202, 334, 613, 1226, 16867, 33734, 61913, 102371, 123826, 204742, 10339471, 20678942]

約数ペア:

[(1, 20678942), (2, 10339471), (101, 204742), (167, 123826), (202, 102371), (334, 61913), (613, 33734), (1226, 16867)]