399129214

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{991}}^1\times {\mathrm{18307}}^1$

素因数の和:19311

約数の個数: 16

約数和(自身を含む): 653815296

約数和(自身を除く): 254686082

約数列:

[1, 2, 11, 22, 991, 1982, 10901, 18307, 21802, 36614, 201377, 402754, 18142237, 36284474, 199564607, 399129214]

約数ペア:

[(1, 399129214), (2, 199564607), (11, 36284474), (22, 18142237), (991, 402754), (1982, 201377), (10901, 36614), (18307, 21802)]