21668784

素因数分解:

$2^4\times 3^1\times {\mathrm{107}}^1\times {\mathrm{4219}}^1$

素因数の和:4337

約数の個数: 40

約数和(自身を含む): 56514240

約数和(自身を除く): 34845456

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 107, 214, 321, 428, 642, 856, 1284, 1712, 2568, 4219, 5136, 8438, 12657, 16876, 25314, 33752, 50628, 67504, 101256, 202512, 451433, 902866, 1354299, 1805732, 2708598, 3611464, 5417196, 7222928, 10834392, 21668784]

約数ペア:

[(1, 21668784), (2, 10834392), (3, 7222928), (4, 5417196), (6, 3611464), (8, 2708598), (12, 1805732), (16, 1354299), (24, 902866), (48, 451433), (107, 202512), (214, 101256), (321, 67504), (428, 50628), (642, 33752), (856, 25314), (1284, 16876), (1712, 12657), (2568, 8438), (4219, 5136)]