12821607519

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{677639}}^1$

素因数の和:677719

約数の個数: 32

約数和(自身を含む): 21077314560

約数和(自身を除く): 8255707041

約数列:

[1, 3, 7, 17, 21, 51, 53, 119, 159, 357, 371, 901, 1113, 2703, 6307, 18921, 677639, 2032917, 4743473, 11519863, 14230419, 34559589, 35914867, 80639041, 107744601, 241917123, 251404069, 610552739, 754212207, 1831658217, 4273869173, 12821607519]

約数ペア:

[(1, 12821607519), (3, 4273869173), (7, 1831658217), (17, 754212207), (21, 610552739), (51, 251404069), (53, 241917123), (119, 107744601), (159, 80639041), (357, 35914867), (371, 34559589), (901, 14230419), (1113, 11519863), (2703, 4743473), (6307, 2032917), (18921, 677639)]