21221528

素因数分解:

$2^3\times {\mathrm{881}}^1\times {\mathrm{3011}}^1$

素因数の和:3898

約数の個数: 16

約数和(自身を含む): 39848760

約数和(自身を除く): 18627232

約数列:

[1, 2, 4, 8, 881, 1762, 3011, 3524, 6022, 7048, 12044, 24088, 2652691, 5305382, 10610764, 21221528]

約数ペア:

[(1, 21221528), (2, 10610764), (4, 5305382), (8, 2652691), (881, 24088), (1762, 12044), (3011, 7048), (3524, 6022)]