20958154

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{20507}}^1$

素因数の和:20589

約数の個数: 16

約数和(自身を含む): 36422208

約数和(自身を除く): 15464054

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 20507, 41014, 143549, 287098, 1497011, 2994022, 10479077, 20958154]

約数ペア:

[(1, 20958154), (2, 10479077), (7, 2994022), (14, 1497011), (73, 287098), (146, 143549), (511, 41014), (1022, 20507)]