18419984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{104659}}^1$

素因数の和:104678

約数の個数: 20

約数和(自身を含む): 38933520

約数和(自身を除く): 20513536

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 104659, 209318, 418636, 837272, 1151249, 1674544, 2302498, 4604996, 9209992, 18419984]

約数ペア:

[(1, 18419984), (2, 9209992), (4, 4604996), (8, 2302498), (11, 1674544), (16, 1151249), (22, 837272), (44, 418636), (88, 209318), (176, 104659)]