217561904

素因数分解:

$2^4\times 7^1\times {\mathrm{431}}^1\times {\mathrm{4507}}^1$

素因数の和:4953

約数の個数: 40

約数和(自身を含む): 482969088

約数和(自身を除く): 265407184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 431, 862, 1724, 3017, 3448, 4507, 6034, 6896, 9014, 12068, 18028, 24136, 31549, 36056, 48272, 63098, 72112, 126196, 252392, 504784, 1942517, 3885034, 7770068, 13597619, 15540136, 27195238, 31080272, 54390476, 108780952, 217561904]

約数ペア:

[(1, 217561904), (2, 108780952), (4, 54390476), (7, 31080272), (8, 27195238), (14, 15540136), (16, 13597619), (28, 7770068), (56, 3885034), (112, 1942517), (431, 504784), (862, 252392), (1724, 126196), (3017, 72112), (3448, 63098), (4507, 48272), (6034, 36056), (6896, 31549), (9014, 24136), (12068, 18028)]