28711907

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3539}}^1$

素因数の和:3626

約数の個数: 16

約数和(自身を含む): 35116800

約数和(自身を除く): 6404893

約数列:

[1, 7, 19, 61, 133, 427, 1159, 3539, 8113, 24773, 67241, 215879, 470687, 1511153, 4101701, 28711907]

約数ペア:

[(1, 28711907), (7, 4101701), (19, 1511153), (61, 470687), (133, 215879), (427, 67241), (1159, 24773), (3539, 8113)]