15921213

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 26695680

約数和(自身を除く): 10774467

約数列:

[1, 3, 7, 11, 21, 33, 77, 157, 231, 439, 471, 1099, 1317, 1727, 3073, 3297, 4829, 5181, 9219, 12089, 14487, 33803, 36267, 68923, 101409, 206769, 482461, 758153, 1447383, 2274459, 5307071, 15921213]

約数ペア:

[(1, 15921213), (3, 5307071), (7, 2274459), (11, 1447383), (21, 758153), (33, 482461), (77, 206769), (157, 101409), (231, 68923), (439, 36267), (471, 33803), (1099, 14487), (1317, 12089), (1727, 9219), (3073, 5181), (3297, 4829)]