21179872

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4111}}^1$

素因数の和:4151

約数の個数: 48

約数和(自身を含む): 49738752

約数和(自身を除く): 28558880

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4111, 5152, 8222, 16444, 28777, 32888, 57554, 65776, 94553, 115108, 131552, 189106, 230216, 378212, 460432, 661871, 756424, 920864, 1323742, 1512848, 2647484, 3025696, 5294968, 10589936, 21179872]

約数ペア:

[(1, 21179872), (2, 10589936), (4, 5294968), (7, 3025696), (8, 2647484), (14, 1512848), (16, 1323742), (23, 920864), (28, 756424), (32, 661871), (46, 460432), (56, 378212), (92, 230216), (112, 189106), (161, 131552), (184, 115108), (224, 94553), (322, 65776), (368, 57554), (644, 32888), (736, 28777), (1288, 16444), (2576, 8222), (4111, 5152)]