27640991

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3407}}^1$

素因数の和:3494

約数の個数: 16

約数和(自身を含む): 33807360

約数和(自身を除く): 6166369

約数列:

[1, 7, 19, 61, 133, 427, 1159, 3407, 8113, 23849, 64733, 207827, 453131, 1454789, 3948713, 27640991]

約数ペア:

[(1, 27640991), (7, 3948713), (19, 1454789), (61, 453131), (133, 207827), (427, 64733), (1159, 23849), (3407, 8113)]