21788774

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:620

約数の個数: 32

約数和(自身を含む): 39315456

約数和(自身を除く): 17526682

約数列:

[1, 2, 7, 14, 23, 46, 157, 161, 314, 322, 431, 862, 1099, 2198, 3017, 3611, 6034, 7222, 9913, 19826, 25277, 50554, 67667, 69391, 135334, 138782, 473669, 947338, 1556341, 3112682, 10894387, 21788774]

約数ペア:

[(1, 21788774), (2, 10894387), (7, 3112682), (14, 1556341), (23, 947338), (46, 473669), (157, 138782), (161, 135334), (314, 69391), (322, 67667), (431, 50554), (862, 25277), (1099, 19826), (2198, 9913), (3017, 7222), (3611, 6034)]