20178453967

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{305267}}^1$

素因数の和:305371

約数の個数: 24

約数和(自身を含む): 25056397440

約数和(自身を除く): 4877943473

約数列:

[1, 7, 19, 49, 71, 133, 497, 931, 1349, 3479, 9443, 66101, 305267, 2136869, 5800073, 14958083, 21673957, 40600511, 151717699, 284203577, 411805183, 1062023893, 2882636281, 20178453967]

約数ペア:

[(1, 20178453967), (7, 2882636281), (19, 1062023893), (49, 411805183), (71, 284203577), (133, 151717699), (497, 40600511), (931, 21673957), (1349, 14958083), (3479, 5800073), (9443, 2136869), (66101, 305267)]