21064946

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7561}}^1$

素因数の和:7769

約数の個数: 16

約数和(自身を含む): 36297600

約数和(自身を除く): 15232654

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 7561, 15122, 52927, 105854, 1504639, 3009278, 10532473, 21064946]

約数ペア:

[(1, 21064946), (2, 10532473), (7, 3009278), (14, 1504639), (199, 105854), (398, 52927), (1393, 15122), (2786, 7561)]