21720182

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8737}}^1$

素因数の和:8863

約数の個数: 16

約数和(自身を含む): 35860752

約数和(自身を除く): 14140570

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8737, 17474, 96107, 192214, 987281, 1974562, 10860091, 21720182]

約数ペア:

[(1, 21720182), (2, 10860091), (11, 1974562), (22, 987281), (113, 192214), (226, 96107), (1243, 17474), (2486, 8737)]