21122031

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6661}}^1$

素因数の和:6822

約数の個数: 16

約数和(自身を含む): 32403968

約数和(自身を除く): 11281937

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6661, 19983, 46627, 139881, 1005811, 3017433, 7040677, 21122031]

約数ペア:

[(1, 21122031), (3, 7040677), (7, 3017433), (21, 1005811), (151, 139881), (453, 46627), (1057, 19983), (3171, 6661)]