21685510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28163}}^1$

素因数の和:28188

約数の個数: 32

約数和(自身を含む): 48667392

約数和(自身を除く): 26981882

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28163, 56326, 140815, 197141, 281630, 309793, 394282, 619586, 985705, 1548965, 1971410, 2168551, 3097930, 4337102, 10842755, 21685510]

約数ペア:

[(1, 21685510), (2, 10842755), (5, 4337102), (7, 3097930), (10, 2168551), (11, 1971410), (14, 1548965), (22, 985705), (35, 619586), (55, 394282), (70, 309793), (77, 281630), (110, 197141), (154, 140815), (385, 56326), (770, 28163)]