20216742021

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2890997}}^1$

素因数の和:2891050

約数の個数: 32

約数和(自身を含む): 35154535680

約数和(自身を除く): 14937793659

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 2890997, 8672991, 20236979, 26018973, 60710937, 78056919, 106966889, 182132811, 320900667, 546398433, 748768223, 962702001, 2246304669, 2888106003, 6738914007, 20216742021]

約数ペア:

[(1, 20216742021), (3, 6738914007), (7, 2888106003), (9, 2246304669), (21, 962702001), (27, 748768223), (37, 546398433), (63, 320900667), (111, 182132811), (189, 106966889), (259, 78056919), (333, 60710937), (777, 26018973), (999, 20236979), (2331, 8672991), (6993, 2890997)]