28884921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2293}}^1$

素因数の和:2345

約数の個数: 32

約数和(自身を含む): 46247040

約数和(自身を除く): 17362119

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 221, 247, 323, 663, 741, 969, 2293, 4199, 6879, 12597, 29809, 38981, 43567, 89427, 116943, 130701, 506753, 566371, 740639, 1520259, 1699113, 2221917, 9628307, 28884921]

約数ペア:

[(1, 28884921), (3, 9628307), (13, 2221917), (17, 1699113), (19, 1520259), (39, 740639), (51, 566371), (57, 506753), (221, 130701), (247, 116943), (323, 89427), (663, 43567), (741, 38981), (969, 29809), (2293, 12597), (4199, 6879)]