18946263

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2143}}^1$

素因数の和:2574

約数の個数: 16

約数和(自身を含む): 28952576

約数和(自身を除く): 10006313

約数列:

[1, 3, 7, 21, 421, 1263, 2143, 2947, 6429, 8841, 15001, 45003, 902203, 2706609, 6315421, 18946263]

約数ペア:

[(1, 18946263), (3, 6315421), (7, 2706609), (21, 902203), (421, 45003), (1263, 15001), (2143, 8841), (2947, 6429)]