20964832

素因数分解:

$2^5\times 7^1\times {\mathrm{173}}^1\times {\mathrm{541}}^1$

素因数の和:731

約数の個数: 48

約数和(自身を含む): 47531232

約数和(自身を除く): 26566400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 173, 224, 346, 541, 692, 1082, 1211, 1384, 2164, 2422, 2768, 3787, 4328, 4844, 5536, 7574, 8656, 9688, 15148, 17312, 19376, 30296, 38752, 60592, 93593, 121184, 187186, 374372, 655151, 748744, 1310302, 1497488, 2620604, 2994976, 5241208, 10482416, 20964832]

約数ペア:

[(1, 20964832), (2, 10482416), (4, 5241208), (7, 2994976), (8, 2620604), (14, 1497488), (16, 1310302), (28, 748744), (32, 655151), (56, 374372), (112, 187186), (173, 121184), (224, 93593), (346, 60592), (541, 38752), (692, 30296), (1082, 19376), (1211, 17312), (1384, 15148), (2164, 9688), (2422, 8656), (2768, 7574), (3787, 5536), (4328, 4844)]