21447142

素因数分解:

$2^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1\times {\mathrm{409}}^1$

素因数の和:735

約数の個数: 16

約数和(自身を含む): 32649120

約数和(自身を除く): 11201978

約数列:

[1, 2, 157, 167, 314, 334, 409, 818, 26219, 52438, 64213, 68303, 128426, 136606, 10723571, 21447142]

約数ペア:

[(1, 21447142), (2, 10723571), (157, 136606), (167, 128426), (314, 68303), (334, 64213), (409, 52438), (818, 26219)]