18642884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5351}}^1$

素因数の和:5435

約数の個数: 24

約数和(自身を含む): 35665728

約数和(自身を除く): 17022844

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 5351, 10702, 21404, 69563, 139126, 278252, 358517, 717034, 1434068, 4660721, 9321442, 18642884]

約数ペア:

[(1, 18642884), (2, 9321442), (4, 4660721), (13, 1434068), (26, 717034), (52, 358517), (67, 278252), (134, 139126), (268, 69563), (871, 21404), (1742, 10702), (3484, 5351)]