20851264

素因数分解:

$2^6\times 7^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:196

約数の個数: 84

約数和(自身を含む): 49369980

約数和(自身を除く): 28518716

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 64, 98, 109, 112, 122, 196, 218, 224, 244, 392, 427, 436, 448, 488, 763, 784, 854, 872, 976, 1526, 1568, 1708, 1744, 1952, 2989, 3052, 3136, 3416, 3488, 3904, 5341, 5978, 6104, 6649, 6832, 6976, 10682, 11956, 12208, 13298, 13664, 21364, 23912, 24416, 26596, 27328, 42728, 46543, 47824, 48832, 53192, 85456, 93086, 95648, 106384, 170912, 186172, 191296, 212768, 325801, 341824, 372344, 425536, 651602, 744688, 1303204, 1489376, 2606408, 2978752, 5212816, 10425632, 20851264]

約数ペア:

[(1, 20851264), (2, 10425632), (4, 5212816), (7, 2978752), (8, 2606408), (14, 1489376), (16, 1303204), (28, 744688), (32, 651602), (49, 425536), (56, 372344), (61, 341824), (64, 325801), (98, 212768), (109, 191296), (112, 186172), (122, 170912), (196, 106384), (218, 95648), (224, 93086), (244, 85456), (392, 53192), (427, 48832), (436, 47824), (448, 46543), (488, 42728), (763, 27328), (784, 26596), (854, 24416), (872, 23912), (976, 21364), (1526, 13664), (1568, 13298), (1708, 12208), (1744, 11956), (1952, 10682), (2989, 6976), (3052, 6832), (3136, 6649), (3416, 6104), (3488, 5978), (3904, 5341)]