28908399

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23911}}^1$

素因数の和:23958

約数の個数: 16

約数和(自身を含む): 42850304

約数和(自身を除く): 13941905

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23911, 71733, 310843, 741241, 932529, 2223723, 9636133, 28908399]

約数ペア:

[(1, 28908399), (3, 9636133), (13, 2223723), (31, 932529), (39, 741241), (93, 310843), (403, 71733), (1209, 23911)]