18951569

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 25025280

約数和(自身を除く): 6073711

約数列:

[1, 7, 13, 19, 91, 97, 113, 133, 247, 679, 791, 1261, 1469, 1729, 1843, 2147, 8827, 10283, 10961, 12901, 15029, 23959, 27911, 76727, 142493, 167713, 195377, 208259, 997451, 1457813, 2707367, 18951569]

約数ペア:

[(1, 18951569), (7, 2707367), (13, 1457813), (19, 997451), (91, 208259), (97, 195377), (113, 167713), (133, 142493), (247, 76727), (679, 27911), (791, 23959), (1261, 15029), (1469, 12901), (1729, 10961), (1843, 10283), (2147, 8827)]