19405991

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{28921}}^1$

素因数の和:28993

約数の個数: 8

約数和(自身を含む): 21517968

約数和(自身を除く): 2111977

約数列:

[1, 11, 61, 671, 28921, 318131, 1764181, 19405991]

約数ペア:

[(1, 19405991), (11, 1764181), (61, 318131), (671, 28921)]