18667216

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13109}}^1$

素因数の和:13206

約数の個数: 20

約数和(自身を含む): 36576900

約数和(自身を除く): 17909684

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13109, 26218, 52436, 104872, 209744, 1166701, 2333402, 4666804, 9333608, 18667216]

約数ペア:

[(1, 18667216), (2, 9333608), (4, 4666804), (8, 2333402), (16, 1166701), (89, 209744), (178, 104872), (356, 52436), (712, 26218), (1424, 13109)]