18431809

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 21833280

約数和(自身を除く): 3401471

約数列:

[1, 11, 23, 37, 121, 179, 253, 407, 851, 1969, 2783, 4117, 4477, 6623, 9361, 21659, 45287, 72853, 102971, 152329, 498157, 801383, 1675619, 18431809]

約数ペア:

[(1, 18431809), (11, 1675619), (23, 801383), (37, 498157), (121, 152329), (179, 102971), (253, 72853), (407, 45287), (851, 21659), (1969, 9361), (2783, 6623), (4117, 4477)]