28409031

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{7643}}^1$

素因数の和:7715

約数の個数: 24

約数和(自身を含む): 47698560

約数和(自身を除く): 19289529

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 7643, 22929, 53501, 68787, 160503, 450937, 481509, 1352811, 3156559, 4058433, 9469677, 28409031]

約数ペア:

[(1, 28409031), (3, 9469677), (7, 4058433), (9, 3156559), (21, 1352811), (59, 481509), (63, 450937), (177, 160503), (413, 68787), (531, 53501), (1239, 22929), (3717, 7643)]