28008071

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 36879360

約数和(自身を除く): 8871289

約数列:

[1, 7, 13, 19, 91, 97, 133, 167, 247, 679, 1169, 1261, 1729, 1843, 2171, 3173, 8827, 12901, 15197, 16199, 22211, 23959, 41249, 113393, 167713, 210587, 288743, 307781, 1474109, 2154467, 4001153, 28008071]

約数ペア:

[(1, 28008071), (7, 4001153), (13, 2154467), (19, 1474109), (91, 307781), (97, 288743), (133, 210587), (167, 167713), (247, 113393), (679, 41249), (1169, 23959), (1261, 22211), (1729, 16199), (1843, 15197), (2171, 12901), (3173, 8827)]