21284608

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 45622080

約数和(自身を除く): 24337472

約数列:

[1, 2, 4, 8, 16, 29, 32, 47, 58, 61, 64, 94, 116, 122, 128, 188, 232, 244, 256, 376, 464, 488, 752, 928, 976, 1363, 1504, 1769, 1856, 1952, 2726, 2867, 3008, 3538, 3712, 3904, 5452, 5734, 6016, 7076, 7424, 7808, 10904, 11468, 12032, 14152, 15616, 21808, 22936, 28304, 43616, 45872, 56608, 83143, 87232, 91744, 113216, 166286, 174464, 183488, 226432, 332572, 348928, 366976, 452864, 665144, 733952, 1330288, 2660576, 5321152, 10642304, 21284608]

約数ペア:

[(1, 21284608), (2, 10642304), (4, 5321152), (8, 2660576), (16, 1330288), (29, 733952), (32, 665144), (47, 452864), (58, 366976), (61, 348928), (64, 332572), (94, 226432), (116, 183488), (122, 174464), (128, 166286), (188, 113216), (232, 91744), (244, 87232), (256, 83143), (376, 56608), (464, 45872), (488, 43616), (752, 28304), (928, 22936), (976, 21808), (1363, 15616), (1504, 14152), (1769, 12032), (1856, 11468), (1952, 10904), (2726, 7808), (2867, 7424), (3008, 7076), (3538, 6016), (3712, 5734), (3904, 5452)]