2157918259

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{169661}}^1$

素因数の和:169770

約数の個数: 16

約数和(自身を含む): 2606008320

約数和(自身を除く): 448090061

約数列:

[1, 7, 23, 79, 161, 553, 1817, 12719, 169661, 1187627, 3902203, 13403219, 27315421, 93822533, 308274037, 2157918259]

約数ペア:

[(1, 2157918259), (7, 308274037), (23, 93822533), (79, 27315421), (161, 13403219), (553, 3902203), (1817, 1187627), (12719, 169661)]