19971395912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2866159}}^1$

素因数の和:2866245

約数の個数: 32

約数和(自身を含む): 40928764800

約数和(自身を除く): 20957368888

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 3484, 6968, 2866159, 5732318, 11464636, 22929272, 37260067, 74520134, 149040268, 192032653, 298080536, 384065306, 768130612, 1536261224, 2496424489, 4992848978, 9985697956, 19971395912]

約数ペア:

[(1, 19971395912), (2, 9985697956), (4, 4992848978), (8, 2496424489), (13, 1536261224), (26, 768130612), (52, 384065306), (67, 298080536), (104, 192032653), (134, 149040268), (268, 74520134), (536, 37260067), (871, 22929272), (1742, 11464636), (3484, 5732318), (6968, 2866159)]