21643856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6121}}^1$

素因数の和:6159

約数の個数: 40

約数和(自身を含む): 47825064

約数和(自身を除く): 26181208

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 6121, 12242, 24484, 48968, 79573, 97936, 104057, 159146, 208114, 318292, 416228, 636584, 832456, 1273168, 1352741, 1664912, 2705482, 5410964, 10821928, 21643856]

約数ペア:

[(1, 21643856), (2, 10821928), (4, 5410964), (8, 2705482), (13, 1664912), (16, 1352741), (17, 1273168), (26, 832456), (34, 636584), (52, 416228), (68, 318292), (104, 208114), (136, 159146), (208, 104057), (221, 97936), (272, 79573), (442, 48968), (884, 24484), (1768, 12242), (3536, 6121)]