211728387

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{7789}}^1$

素因数の和:7863

約数の個数: 32

約数和(自身を含む): 329797440

約数和(自身を除く): 118069053

約数列:

[1, 3, 13, 17, 39, 41, 51, 123, 221, 533, 663, 697, 1599, 2091, 7789, 9061, 23367, 27183, 101257, 132413, 303771, 319349, 397239, 958047, 1721369, 4151537, 5164107, 5428933, 12454611, 16286799, 70576129, 211728387]

約数ペア:

[(1, 211728387), (3, 70576129), (13, 16286799), (17, 12454611), (39, 5428933), (41, 5164107), (51, 4151537), (123, 1721369), (221, 958047), (533, 397239), (663, 319349), (697, 303771), (1599, 132413), (2091, 101257), (7789, 27183), (9061, 23367)]