19663864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3061}}^1$

素因数の和:3151

約数の個数: 32

約数和(自身を含む): 40785840

約数和(自身を除く): 21121976

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 3061, 3212, 6122, 6424, 12244, 24488, 33671, 67342, 134684, 223453, 269368, 446906, 893812, 1787624, 2457983, 4915966, 9831932, 19663864]

約数ペア:

[(1, 19663864), (2, 9831932), (4, 4915966), (8, 2457983), (11, 1787624), (22, 893812), (44, 446906), (73, 269368), (88, 223453), (146, 134684), (292, 67342), (584, 33671), (803, 24488), (1606, 12244), (3061, 6424), (3212, 6122)]