28238613

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23357}}^1$

素因数の和:23404

約数の個数: 16

約数和(自身を含む): 41857536

約数和(自身を除く): 13618923

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23357, 70071, 303641, 724067, 910923, 2172201, 9412871, 28238613]

約数ペア:

[(1, 28238613), (3, 9412871), (13, 2172201), (31, 910923), (39, 724067), (93, 303641), (403, 70071), (1209, 23357)]