21645827

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:626

約数の個数: 16

約数和(自身を含む): 25536000

約数和(自身を除く): 3890173

約数列:

[1, 7, 41, 199, 287, 379, 1393, 2653, 8159, 15539, 57113, 75421, 108773, 527947, 3092261, 21645827]

約数ペア:

[(1, 21645827), (7, 3092261), (41, 527947), (199, 108773), (287, 75421), (379, 57113), (1393, 15539), (2653, 8159)]