216991516

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{189017}}^1$

素因数の和:189069

約数の個数: 24

約数和(自身を含む): 444570336

約数和(自身を除く): 227578820

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 189017, 378034, 756068, 1323119, 2646238, 5292476, 7749697, 15499394, 30998788, 54247879, 108495758, 216991516]

約数ペア:

[(1, 216991516), (2, 108495758), (4, 54247879), (7, 30998788), (14, 15499394), (28, 7749697), (41, 5292476), (82, 2646238), (164, 1323119), (287, 756068), (574, 378034), (1148, 189017)]