28196259

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{577}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 46609920

約数和(自身を除く): 18413661

約数列:

[1, 3, 7, 13, 21, 39, 91, 179, 273, 537, 577, 1253, 1731, 2327, 3759, 4039, 6981, 7501, 12117, 16289, 22503, 48867, 52507, 103283, 157521, 309849, 722981, 1342679, 2168943, 4028037, 9398753, 28196259]

約数ペア:

[(1, 28196259), (3, 9398753), (7, 4028037), (13, 2168943), (21, 1342679), (39, 722981), (91, 309849), (179, 157521), (273, 103283), (537, 52507), (577, 48867), (1253, 22503), (1731, 16289), (2327, 12117), (3759, 7501), (4039, 6981)]