21147513

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{9049}}^1$

素因数の和:9112

約数の個数: 16

約数和(自身を含む): 30408000

約数和(自身を除く): 9260487

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 9049, 27147, 171931, 371009, 515793, 1113027, 7049171, 21147513]

約数ペア:

[(1, 21147513), (3, 7049171), (19, 1113027), (41, 515793), (57, 371009), (123, 171931), (779, 27147), (2337, 9049)]