209879145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21493}}^1$

素因数の和:21542

約数の個数: 48

約数和(自身を含む): 429192192

約数和(自身を除く): 219313047

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 3255, 9765, 21493, 64479, 107465, 150451, 193437, 322395, 451353, 666283, 752255, 967185, 1354059, 1998849, 2256765, 3331415, 4663981, 5996547, 6770295, 9994245, 13991943, 23319905, 29982735, 41975829, 69959715, 209879145]

約数ペア:

[(1, 209879145), (3, 69959715), (5, 41975829), (7, 29982735), (9, 23319905), (15, 13991943), (21, 9994245), (31, 6770295), (35, 5996547), (45, 4663981), (63, 3331415), (93, 2256765), (105, 1998849), (155, 1354059), (217, 967185), (279, 752255), (315, 666283), (465, 451353), (651, 322395), (1085, 193437), (1395, 150451), (1953, 107465), (3255, 64479), (9765, 21493)]