128520939141

素因数分解:

$3^4\times 7^2\times {\mathrm{32381189}}^1$

素因数の和:32381215

約数の個数: 30

約数和(自身を含む): 223333067430

約数和(自身を除く): 94812128289

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 32381189, 97143567, 226668323, 291430701, 680004969, 874292103, 1586678261, 2040014907, 2622876309, 4760034783, 6120044721, 14280104349, 18360134163, 42840313047, 128520939141]

約数ペア:

[(1, 128520939141), (3, 42840313047), (7, 18360134163), (9, 14280104349), (21, 6120044721), (27, 4760034783), (49, 2622876309), (63, 2040014907), (81, 1586678261), (147, 874292103), (189, 680004969), (441, 291430701), (567, 226668323), (1323, 97143567), (3969, 32381189)]