21326284

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40087}}^1$

素因数の和:40117

約数の個数: 24

約数和(自身を含む): 44898560

約数和(自身を除く): 23572276

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40087, 80174, 160348, 280609, 561218, 761653, 1122436, 1523306, 3046612, 5331571, 10663142, 21326284]

約数ペア:

[(1, 21326284), (2, 10663142), (4, 5331571), (7, 3046612), (14, 1523306), (19, 1122436), (28, 761653), (38, 561218), (76, 280609), (133, 160348), (266, 80174), (532, 40087)]