18219289

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 21659904

約数和(自身を除く): 3440615

約数列:

[1, 11, 23, 31, 101, 253, 341, 529, 713, 1111, 2323, 3131, 5819, 7843, 16399, 25553, 34441, 53429, 72013, 180389, 587719, 792143, 1656299, 18219289]

約数ペア:

[(1, 18219289), (11, 1656299), (23, 792143), (31, 587719), (101, 180389), (253, 72013), (341, 53429), (529, 34441), (713, 25553), (1111, 16399), (2323, 7843), (3131, 5819)]