28328079

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23431}}^1$

素因数の和:23478

約数の個数: 16

約数和(自身を含む): 41990144

約数和(自身を除く): 13662065

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23431, 70293, 304603, 726361, 913809, 2179083, 9442693, 28328079]

約数ペア:

[(1, 28328079), (3, 9442693), (13, 2179083), (31, 913809), (39, 726361), (93, 304603), (403, 70293), (1209, 23431)]