21085326

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20551}}^1$

素因数の和:20581

約数の個数: 32

約数和(自身を含む): 49324800

約数和(自身を除く): 28239474

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20551, 41102, 61653, 123306, 184959, 369918, 390469, 554877, 780938, 1109754, 1171407, 2342814, 3514221, 7028442, 10542663, 21085326]

約数ペア:

[(1, 21085326), (2, 10542663), (3, 7028442), (6, 3514221), (9, 2342814), (18, 1171407), (19, 1109754), (27, 780938), (38, 554877), (54, 390469), (57, 369918), (114, 184959), (171, 123306), (342, 61653), (513, 41102), (1026, 20551)]