211318191

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{30773}}^1$

素因数の和:30895

約数の個数: 24

約数和(自身を含む): 352054560

約数和(自身を除く): 140736369

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 6867, 30773, 92319, 215411, 276957, 646233, 1938699, 3354257, 10062771, 23479799, 30188313, 70439397, 211318191]

約数ペア:

[(1, 211318191), (3, 70439397), (7, 30188313), (9, 23479799), (21, 10062771), (63, 3354257), (109, 1938699), (327, 646233), (763, 276957), (981, 215411), (2289, 92319), (6867, 30773)]