21063903

素因数分解:

$3^1\times 7^1\times {\mathrm{971}}^1\times {\mathrm{1033}}^1$

素因数の和:2014

約数の個数: 16

約数和(自身を含む): 32161536

約数和(自身を除く): 11097633

約数列:

[1, 3, 7, 21, 971, 1033, 2913, 3099, 6797, 7231, 20391, 21693, 1003043, 3009129, 7021301, 21063903]

約数ペア:

[(1, 21063903), (3, 7021301), (7, 3009129), (21, 1003043), (971, 21693), (1033, 20391), (2913, 7231), (3099, 6797)]