18298511

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1997}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 24599376

約数和(自身を除く): 6300865

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 1997, 9163, 13979, 21967, 33949, 97853, 153769, 237643, 373439, 1076383, 1663501, 2614073, 18298511]

約数ペア:

[(1, 18298511), (7, 2614073), (11, 1663501), (17, 1076383), (49, 373439), (77, 237643), (119, 153769), (187, 97853), (539, 33949), (833, 21967), (1309, 13979), (1997, 9163)]