21115738

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{36787}}^1$

素因数の和:36837

約数の個数: 16

約数和(自身を含む): 37082304

約数和(自身を除く): 15966566

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 36787, 73574, 257509, 515018, 1508267, 3016534, 10557869, 21115738]

約数ペア:

[(1, 21115738), (2, 10557869), (7, 3016534), (14, 1508267), (41, 515018), (82, 257509), (287, 73574), (574, 36787)]