20516373

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 30453696

約数和(自身を除く): 9937323

約数列:

[1, 3, 9, 71, 97, 213, 291, 331, 639, 873, 993, 2979, 6887, 20661, 23501, 32107, 61983, 70503, 96321, 211509, 288963, 2279597, 6838791, 20516373]

約数ペア:

[(1, 20516373), (3, 6838791), (9, 2279597), (71, 288963), (97, 211509), (213, 96321), (291, 70503), (331, 61983), (639, 32107), (873, 23501), (993, 20661), (2979, 6887)]