7974891071

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{450839}}^1$

素因数の和:450891

約数の個数: 18

約数和(自身を含む): 9790892280

約数和(自身を除く): 1816001209

約数列:

[1, 7, 19, 49, 133, 361, 931, 2527, 17689, 450839, 3155873, 8565941, 22091111, 59961587, 162752879, 419731109, 1139270153, 7974891071]

約数ペア:

[(1, 7974891071), (7, 1139270153), (19, 419731109), (49, 162752879), (133, 59961587), (361, 22091111), (931, 8565941), (2527, 3155873), (17689, 450839)]