20905892

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{5011}}^1$

素因数の和:5171

約数の個数: 24

約数和(自身を含む): 42100800

約数和(自身を除く): 21194908

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 5011, 10022, 20044, 35077, 70154, 140308, 746639, 1493278, 2986556, 5226473, 10452946, 20905892]

約数ペア:

[(1, 20905892), (2, 10452946), (4, 5226473), (7, 2986556), (14, 1493278), (28, 746639), (149, 140308), (298, 70154), (596, 35077), (1043, 20044), (2086, 10022), (4172, 5011)]