28789917

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23813}}^1$

素因数の和:23860

約数の個数: 16

約数和(自身を含む): 42674688

約数和(自身を除く): 13884771

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23813, 71439, 309569, 738203, 928707, 2214609, 9596639, 28789917]

約数ペア:

[(1, 28789917), (3, 9596639), (13, 2214609), (31, 928707), (39, 738203), (93, 309569), (403, 71439), (1209, 23813)]