21298021209

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{139202753}}^1$

素因数の和:139202776

約数の個数: 12

約数和(自身を含む): 32573444436

約数和(自身を除く): 11275423227

約数列:

[1, 3, 9, 17, 51, 153, 139202753, 417608259, 1252824777, 2366446801, 7099340403, 21298021209]

約数ペア:

[(1, 21298021209), (3, 7099340403), (9, 2366446801), (17, 1252824777), (51, 417608259), (153, 139202753)]