21506814

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{170689}}^1$

素因数の和:170704

約数の個数: 24

約数和(自身を含む): 53255280

約数和(自身を除く): 31748466

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 170689, 341378, 512067, 1024134, 1194823, 1536201, 2389646, 3072402, 3584469, 7168938, 10753407, 21506814]

約数ペア:

[(1, 21506814), (2, 10753407), (3, 7168938), (6, 3584469), (7, 3072402), (9, 2389646), (14, 1536201), (18, 1194823), (21, 1024134), (42, 512067), (63, 341378), (126, 170689)]