15181761

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 24272640

約数和(自身を除く): 9090879

約数列:

[1, 3, 7, 21, 29, 87, 97, 203, 257, 291, 609, 679, 771, 1799, 2037, 2813, 5397, 7453, 8439, 19691, 22359, 24929, 52171, 59073, 74787, 156513, 174503, 523509, 722941, 2168823, 5060587, 15181761]

約数ペア:

[(1, 15181761), (3, 5060587), (7, 2168823), (21, 722941), (29, 523509), (87, 174503), (97, 156513), (203, 74787), (257, 59073), (291, 52171), (609, 24929), (679, 22359), (771, 19691), (1799, 8439), (2037, 7453), (2813, 5397)]