21644272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104059}}^1$

素因数の和:104080

約数の個数: 20

約数和(自身を含む): 45162040

約数和(自身を除く): 23517768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104059, 208118, 416236, 832472, 1352767, 1664944, 2705534, 5411068, 10822136, 21644272]

約数ペア:

[(1, 21644272), (2, 10822136), (4, 5411068), (8, 2705534), (13, 1664944), (16, 1352767), (26, 832472), (52, 416236), (104, 208118), (208, 104059)]