21259024

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69931}}^1$

素因数の和:69958

約数の個数: 20

約数和(自身を含む): 43357840

約数和(自身を除く): 22098816

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69931, 139862, 279724, 559448, 1118896, 1328689, 2657378, 5314756, 10629512, 21259024]

約数ペア:

[(1, 21259024), (2, 10629512), (4, 5314756), (8, 2657378), (16, 1328689), (19, 1118896), (38, 559448), (76, 279724), (152, 139862), (304, 69931)]