28137645

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{811}}^1$

素因数の和:1082

約数の個数: 32

約数和(自身を含む): 50279040

約数和(自身を除く): 22141395

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 771, 811, 1285, 2313, 2433, 3855, 4055, 6939, 7299, 11565, 12165, 21897, 34695, 36495, 109485, 208427, 625281, 1042135, 1875843, 3126405, 5627529, 9379215, 28137645]

約数ペア:

[(1, 28137645), (3, 9379215), (5, 5627529), (9, 3126405), (15, 1875843), (27, 1042135), (45, 625281), (135, 208427), (257, 109485), (771, 36495), (811, 34695), (1285, 21897), (2313, 12165), (2433, 11565), (3855, 7299), (4055, 6939)]