21329504

素因数分解:

$2^5\times 7^2\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:308

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 28542304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 98, 112, 122, 196, 223, 224, 244, 392, 427, 446, 488, 784, 854, 892, 976, 1561, 1568, 1708, 1784, 1952, 2989, 3122, 3416, 3568, 5978, 6244, 6832, 7136, 10927, 11956, 12488, 13603, 13664, 21854, 23912, 24976, 27206, 43708, 47824, 49952, 54412, 87416, 95221, 95648, 108824, 174832, 190442, 217648, 349664, 380884, 435296, 666547, 761768, 1333094, 1523536, 2666188, 3047072, 5332376, 10664752, 21329504]

約数ペア:

[(1, 21329504), (2, 10664752), (4, 5332376), (7, 3047072), (8, 2666188), (14, 1523536), (16, 1333094), (28, 761768), (32, 666547), (49, 435296), (56, 380884), (61, 349664), (98, 217648), (112, 190442), (122, 174832), (196, 108824), (223, 95648), (224, 95221), (244, 87416), (392, 54412), (427, 49952), (446, 47824), (488, 43708), (784, 27206), (854, 24976), (892, 23912), (976, 21854), (1561, 13664), (1568, 13603), (1708, 12488), (1784, 11956), (1952, 10927), (2989, 7136), (3122, 6832), (3416, 6244), (3568, 5978)]