21147464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203341}}^1$

素因数の和:203360

約数の個数: 16

約数和(自身を含む): 42701820

約数和(自身を除く): 21554356

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203341, 406682, 813364, 1626728, 2643433, 5286866, 10573732, 21147464]

約数ペア:

[(1, 21147464), (2, 10573732), (4, 5286866), (8, 2643433), (13, 1626728), (26, 813364), (52, 406682), (104, 203341)]