21927136

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{809}}^1$

素因数の和:848

約数の個数: 72

約数和(自身を含む): 54295920

約数和(自身を除く): 32368784

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 121, 154, 176, 224, 242, 308, 352, 484, 616, 809, 847, 968, 1232, 1618, 1694, 1936, 2464, 3236, 3388, 3872, 5663, 6472, 6776, 8899, 11326, 12944, 13552, 17798, 22652, 25888, 27104, 35596, 45304, 62293, 71192, 90608, 97889, 124586, 142384, 181216, 195778, 249172, 284768, 391556, 498344, 685223, 783112, 996688, 1370446, 1566224, 1993376, 2740892, 3132448, 5481784, 10963568, 21927136]

約数ペア:

[(1, 21927136), (2, 10963568), (4, 5481784), (7, 3132448), (8, 2740892), (11, 1993376), (14, 1566224), (16, 1370446), (22, 996688), (28, 783112), (32, 685223), (44, 498344), (56, 391556), (77, 284768), (88, 249172), (112, 195778), (121, 181216), (154, 142384), (176, 124586), (224, 97889), (242, 90608), (308, 71192), (352, 62293), (484, 45304), (616, 35596), (809, 27104), (847, 25888), (968, 22652), (1232, 17798), (1618, 13552), (1694, 12944), (1936, 11326), (2464, 8899), (3236, 6776), (3388, 6472), (3872, 5663)]