21109818

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4813}}^1$

素因数の和:4878

約数の個数: 32

約数和(自身を含む): 45752256

約数和(自身を除く): 24642438

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 86, 102, 129, 258, 731, 1462, 2193, 4386, 4813, 9626, 14439, 28878, 81821, 163642, 206959, 245463, 413918, 490926, 620877, 1241754, 3518303, 7036606, 10554909, 21109818]

約数ペア:

[(1, 21109818), (2, 10554909), (3, 7036606), (6, 3518303), (17, 1241754), (34, 620877), (43, 490926), (51, 413918), (86, 245463), (102, 206959), (129, 163642), (258, 81821), (731, 28878), (1462, 14439), (2193, 9626), (4386, 4813)]