81754701

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3359}}^1$

素因数の和:3449

約数の個数: 32

約数和(自身を含む): 133324800

約数和(自身を除く): 51570099

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 1159, 1281, 3359, 3477, 8113, 10077, 23513, 24339, 63821, 70539, 191463, 204899, 446747, 614697, 1340241, 1434293, 3893081, 4302879, 11679243, 27251567, 81754701]

約数ペア:

[(1, 81754701), (3, 27251567), (7, 11679243), (19, 4302879), (21, 3893081), (57, 1434293), (61, 1340241), (133, 614697), (183, 446747), (399, 204899), (427, 191463), (1159, 70539), (1281, 63821), (3359, 24339), (3477, 23513), (8113, 10077)]