18403216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{859}}^1$

素因数の和:983

約数の個数: 40

約数和(自身を含む): 38816960

約数和(自身を除く): 20413744

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 103, 104, 206, 208, 412, 824, 859, 1339, 1648, 1718, 2678, 3436, 5356, 6872, 10712, 11167, 13744, 21424, 22334, 44668, 88477, 89336, 176954, 178672, 353908, 707816, 1150201, 1415632, 2300402, 4600804, 9201608, 18403216]

約数ペア:

[(1, 18403216), (2, 9201608), (4, 4600804), (8, 2300402), (13, 1415632), (16, 1150201), (26, 707816), (52, 353908), (103, 178672), (104, 176954), (206, 89336), (208, 88477), (412, 44668), (824, 22334), (859, 21424), (1339, 13744), (1648, 11167), (1718, 10712), (2678, 6872), (3436, 5356)]