30721254

素因数分解:

$2^1\times 3^1\times {\mathrm{643}}^1\times {\mathrm{7963}}^1$

素因数の和:8611

約数の個数: 16

約数和(自身を含む): 61545792

約数和(自身を除く): 30824538

約数列:

[1, 2, 3, 6, 643, 1286, 1929, 3858, 7963, 15926, 23889, 47778, 5120209, 10240418, 15360627, 30721254]

約数ペア:

[(1, 30721254), (2, 15360627), (3, 10240418), (6, 5120209), (643, 47778), (1286, 23889), (1929, 15926), (3858, 7963)]