19990641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31883}}^1$

素因数の和:31916

約数の個数: 16

約数和(自身を含む): 30608640

約数和(自身を除く): 10617999

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 31883, 95649, 350713, 605777, 1052139, 1817331, 6663547, 19990641]

約数ペア:

[(1, 19990641), (3, 6663547), (11, 1817331), (19, 1052139), (33, 605777), (57, 350713), (209, 95649), (627, 31883)]