217990276

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{189887}}^1$

素因数の和:189939

約数の個数: 24

約数和(自身を含む): 446616576

約数和(自身を除く): 228626300

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 189887, 379774, 759548, 1329209, 2658418, 5316836, 7785367, 15570734, 31141468, 54497569, 108995138, 217990276]

約数ペア:

[(1, 217990276), (2, 108995138), (4, 54497569), (7, 31141468), (14, 15570734), (28, 7785367), (41, 5316836), (82, 2658418), (164, 1329209), (287, 759548), (574, 379774), (1148, 189887)]