21332272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102559}}^1$

素因数の和:102580

約数の個数: 20

約数和(自身を含む): 44511040

約数和(自身を除く): 23178768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102559, 205118, 410236, 820472, 1333267, 1640944, 2666534, 5333068, 10666136, 21332272]

約数ペア:

[(1, 21332272), (2, 10666136), (4, 5333068), (8, 2666534), (13, 1640944), (16, 1333267), (26, 820472), (52, 410236), (104, 205118), (208, 102559)]