213729903

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{1873}}^1$

素因数の和:2319

約数の個数: 24

約数和(自身を含む): 319629440

約数和(自身を除く): 105899537

約数列:

[1, 3, 9, 31, 93, 279, 409, 1227, 1873, 3681, 5619, 12679, 16857, 38037, 58063, 114111, 174189, 522567, 766057, 2298171, 6894513, 23747767, 71243301, 213729903]

約数ペア:

[(1, 213729903), (3, 71243301), (9, 23747767), (31, 6894513), (93, 2298171), (279, 766057), (409, 522567), (1227, 174189), (1873, 114111), (3681, 58063), (5619, 38037), (12679, 16857)]