21048601

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2423}}^1$

素因数の和:2520

約数の個数: 16

約数和(自身を含む): 25830144

約数和(自身を除く): 4781543

約数列:

[1, 7, 17, 73, 119, 511, 1241, 2423, 8687, 16961, 41191, 176879, 288337, 1238153, 3006943, 21048601]

約数ペア:

[(1, 21048601), (7, 3006943), (17, 1238153), (73, 288337), (119, 176879), (511, 41191), (1241, 16961), (2423, 8687)]