21399882

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509521}}^1$

素因数の和:509533

約数の個数: 16

約数和(自身を含む): 48914112

約数和(自身を除く): 27514230

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509521, 1019042, 1528563, 3057126, 3566647, 7133294, 10699941, 21399882]

約数ペア:

[(1, 21399882), (2, 10699941), (3, 7133294), (6, 3566647), (7, 3057126), (14, 1528563), (21, 1019042), (42, 509521)]