218793429

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{521}}^1\times {\mathrm{1609}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 327763800

約数和(自身を除く): 108970371

約数列:

[1, 3, 9, 29, 87, 261, 521, 1563, 1609, 4689, 4827, 14481, 15109, 45327, 46661, 135981, 139983, 419949, 838289, 2514867, 7544601, 24310381, 72931143, 218793429]

約数ペア:

[(1, 218793429), (3, 72931143), (9, 24310381), (29, 7544601), (87, 2514867), (261, 838289), (521, 419949), (1563, 139983), (1609, 135981), (4689, 46661), (4827, 45327), (14481, 15109)]