21206283

素因数分解:

$3^1\times 7^1\times {\mathrm{929}}^1\times {\mathrm{1087}}^1$

素因数の和:2026

約数の個数: 16

約数和(自身を含む): 32378880

約数和(自身を除く): 11172597

約数列:

[1, 3, 7, 21, 929, 1087, 2787, 3261, 6503, 7609, 19509, 22827, 1009823, 3029469, 7068761, 21206283]

約数ペア:

[(1, 21206283), (3, 7068761), (7, 3029469), (21, 1009823), (929, 22827), (1087, 19509), (2787, 7609), (3261, 6503)]