21000939951

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{4013}}^1\times {\mathrm{91811}}^1$

素因数の和:95846

約数の個数: 16

約数和(自身を含む): 29482669440

約数和(自身を除く): 8481729489

約数列:

[1, 3, 19, 57, 4013, 12039, 76247, 91811, 228741, 275433, 1744409, 5233227, 368437543, 1105312629, 7000313317, 21000939951]

約数ペア:

[(1, 21000939951), (3, 7000313317), (19, 1105312629), (57, 368437543), (4013, 5233227), (12039, 1744409), (76247, 275433), (91811, 228741)]