21290612

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3821}}^1$

素因数の和:4031

約数の個数: 24

約数和(自身を含む): 42806400

約数和(自身を除く): 21515788

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3821, 5572, 7642, 15284, 26747, 53494, 106988, 760379, 1520758, 3041516, 5322653, 10645306, 21290612]

約数ペア:

[(1, 21290612), (2, 10645306), (4, 5322653), (7, 3041516), (14, 1520758), (28, 760379), (199, 106988), (398, 53494), (796, 26747), (1393, 15284), (2786, 7642), (3821, 5572)]