400049853

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1\times {\mathrm{991}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 624721920

約数和(自身を除く): 224672067

約数列:

[1, 3, 7, 21, 47, 141, 329, 409, 987, 991, 1227, 2863, 2973, 6937, 8589, 19223, 20811, 46577, 57669, 134561, 139731, 326039, 403683, 405319, 978117, 1215957, 2837233, 8511699, 19049993, 57149979, 133349951, 400049853]

約数ペア:

[(1, 400049853), (3, 133349951), (7, 57149979), (21, 19049993), (47, 8511699), (141, 2837233), (329, 1215957), (409, 978117), (987, 405319), (991, 403683), (1227, 326039), (2863, 139731), (2973, 134561), (6937, 57669), (8589, 46577), (19223, 20811)]