21289904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{57853}}^1$

素因数の和:57884

約数の個数: 20

約数和(自身を含む): 43043376

約数和(自身を除く): 21753472

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 57853, 115706, 231412, 462824, 925648, 1330619, 2661238, 5322476, 10644952, 21289904]

約数ペア:

[(1, 21289904), (2, 10644952), (4, 5322476), (8, 2661238), (16, 1330619), (23, 925648), (46, 462824), (92, 231412), (184, 115706), (368, 57853)]