128971297

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{769}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 169030400

約数和(自身を除く): 40059103

約数列:

[1, 7, 13, 19, 91, 97, 133, 247, 679, 769, 1261, 1729, 1843, 5383, 8827, 9997, 12901, 14611, 23959, 69979, 74593, 102277, 167713, 189943, 522151, 969709, 1329601, 1417267, 6787963, 9920869, 18424471, 128971297]

約数ペア:

[(1, 128971297), (7, 18424471), (13, 9920869), (19, 6787963), (91, 1417267), (97, 1329601), (133, 969709), (247, 522151), (679, 189943), (769, 167713), (1261, 102277), (1729, 74593), (1843, 69979), (5383, 23959), (8827, 14611), (9997, 12901)]