21760592

素因数分解:

$2^4\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2003}}^1$

素因数の和:2115

約数の個数: 40

約数和(自身を含む): 48705216

約数和(自身を除く): 26944624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 97, 112, 194, 388, 679, 776, 1358, 1552, 2003, 2716, 4006, 5432, 8012, 10864, 14021, 16024, 28042, 32048, 56084, 112168, 194291, 224336, 388582, 777164, 1360037, 1554328, 2720074, 3108656, 5440148, 10880296, 21760592]

約数ペア:

[(1, 21760592), (2, 10880296), (4, 5440148), (7, 3108656), (8, 2720074), (14, 1554328), (16, 1360037), (28, 777164), (56, 388582), (97, 224336), (112, 194291), (194, 112168), (388, 56084), (679, 32048), (776, 28042), (1358, 16024), (1552, 14021), (2003, 10864), (2716, 8012), (4006, 5432)]