18847708

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4813}}^1$

素因数の和:4917

約数の個数: 24

約数和(自身を含む): 36393840

約数和(自身を除く): 17546132

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 4813, 9626, 19252, 52943, 105886, 211772, 428357, 856714, 1713428, 4711927, 9423854, 18847708]

約数ペア:

[(1, 18847708), (2, 9423854), (4, 4711927), (11, 1713428), (22, 856714), (44, 428357), (89, 211772), (178, 105886), (356, 52943), (979, 19252), (1958, 9626), (3916, 4813)]