21221536

素因数分解:

$2^5\times 7^1\times {\mathrm{211}}^1\times {\mathrm{449}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 48081600

約数和(自身を除く): 26860064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 211, 224, 422, 449, 844, 898, 1477, 1688, 1796, 2954, 3143, 3376, 3592, 5908, 6286, 6752, 7184, 11816, 12572, 14368, 23632, 25144, 47264, 50288, 94739, 100576, 189478, 378956, 663173, 757912, 1326346, 1515824, 2652692, 3031648, 5305384, 10610768, 21221536]

約数ペア:

[(1, 21221536), (2, 10610768), (4, 5305384), (7, 3031648), (8, 2652692), (14, 1515824), (16, 1326346), (28, 757912), (32, 663173), (56, 378956), (112, 189478), (211, 100576), (224, 94739), (422, 50288), (449, 47264), (844, 25144), (898, 23632), (1477, 14368), (1688, 12572), (1796, 11816), (2954, 7184), (3143, 6752), (3376, 6286), (3592, 5908)]