12821751

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{773}}^1$

素因数の和:895

約数の個数: 24

約数和(自身を含む): 19721520

約数和(自身を除く): 6899769

約数列:

[1, 3, 9, 19, 57, 97, 171, 291, 773, 873, 1843, 2319, 5529, 6957, 14687, 16587, 44061, 74981, 132183, 224943, 674829, 1424639, 4273917, 12821751]

約数ペア:

[(1, 12821751), (3, 4273917), (9, 1424639), (19, 674829), (57, 224943), (97, 132183), (171, 74981), (291, 44061), (773, 16587), (873, 14687), (1843, 6957), (2319, 5529)]