208768329

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4243}}^1$

素因数の和:4338

約数の個数: 48

約数和(自身を含む): 381348864

約数和(自身を除く): 172580535

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 497, 639, 693, 781, 1491, 2343, 4243, 4473, 5467, 7029, 12729, 16401, 29701, 38187, 46673, 49203, 89103, 140019, 267309, 301253, 326711, 420057, 903759, 980133, 2108771, 2711277, 2940399, 3313783, 6326313, 9941349, 18978939, 23196481, 29824047, 69589443, 208768329]

約数ペア:

[(1, 208768329), (3, 69589443), (7, 29824047), (9, 23196481), (11, 18978939), (21, 9941349), (33, 6326313), (63, 3313783), (71, 2940399), (77, 2711277), (99, 2108771), (213, 980133), (231, 903759), (497, 420057), (639, 326711), (693, 301253), (781, 267309), (1491, 140019), (2343, 89103), (4243, 49203), (4473, 46673), (5467, 38187), (7029, 29701), (12729, 16401)]