21357787

素因数分解:

${\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{379}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 24076800

約数和(自身を除く): 2719013

約数列:

[1, 11, 47, 109, 379, 517, 1199, 4169, 5123, 17813, 41311, 56353, 195943, 454421, 1941617, 21357787]

約数ペア:

[(1, 21357787), (11, 1941617), (47, 454421), (109, 195943), (379, 56353), (517, 41311), (1199, 17813), (4169, 5123)]