21051268

素因数分解:

$2^2\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1303}}^1$

素因数の和:1891

約数の個数: 24

約数和(自身を含む): 42207872

約数和(自身を除く): 21156604

約数列:

[1, 2, 4, 7, 14, 28, 577, 1154, 1303, 2308, 2606, 4039, 5212, 8078, 9121, 16156, 18242, 36484, 751831, 1503662, 3007324, 5262817, 10525634, 21051268]

約数ペア:

[(1, 21051268), (2, 10525634), (4, 5262817), (7, 3007324), (14, 1503662), (28, 751831), (577, 36484), (1154, 18242), (1303, 16156), (2308, 9121), (2606, 8078), (4039, 5212)]