20972858

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:434

約数の個数: 24

約数和(自身を含む): 33561372

約数和(自身を除く): 12588514

約数列:

[1, 2, 29, 37, 58, 74, 337, 674, 841, 1073, 1682, 2146, 9773, 12469, 19546, 24938, 31117, 62234, 283417, 361601, 566834, 723202, 10486429, 20972858]

約数ペア:

[(1, 20972858), (2, 10486429), (29, 723202), (37, 566834), (58, 361601), (74, 283417), (337, 62234), (674, 31117), (841, 24938), (1073, 19546), (1682, 12469), (2146, 9773)]