81402069

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{2131}}^1$

素因数の和:2265

約数の個数: 32

約数和(自身を含む): 132627456

約数和(自身を除く): 51225387

約数列:

[1, 3, 7, 17, 21, 51, 107, 119, 321, 357, 749, 1819, 2131, 2247, 5457, 6393, 12733, 14917, 36227, 38199, 44751, 108681, 228017, 253589, 684051, 760767, 1596119, 3876289, 4788357, 11628867, 27134023, 81402069]

約数ペア:

[(1, 81402069), (3, 27134023), (7, 11628867), (17, 4788357), (21, 3876289), (51, 1596119), (107, 760767), (119, 684051), (321, 253589), (357, 228017), (749, 108681), (1819, 44751), (2131, 38199), (2247, 36227), (5457, 14917), (6393, 12733)]