21484424

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{613}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 43581720

約数和(自身を除く): 22097296

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 337, 613, 674, 1226, 1348, 2452, 2696, 4381, 4904, 7969, 8762, 15938, 17524, 31876, 35048, 63752, 206581, 413162, 826324, 1652648, 2685553, 5371106, 10742212, 21484424]

約数ペア:

[(1, 21484424), (2, 10742212), (4, 5371106), (8, 2685553), (13, 1652648), (26, 826324), (52, 413162), (104, 206581), (337, 63752), (613, 35048), (674, 31876), (1226, 17524), (1348, 15938), (2452, 8762), (2696, 7969), (4381, 4904)]