20188828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12401}}^1$

素因数の和:12453

約数の個数: 24

約数和(自身を含む): 39587184

約数和(自身を除く): 19398356

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12401, 24802, 49604, 136411, 272822, 458837, 545644, 917674, 1835348, 5047207, 10094414, 20188828]

約数ペア:

[(1, 20188828), (2, 10094414), (4, 5047207), (11, 1835348), (22, 917674), (37, 545644), (44, 458837), (74, 272822), (148, 136411), (407, 49604), (814, 24802), (1628, 12401)]