21712028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13469}}^1$

素因数の和:13517

約数の個数: 24

約数和(自身を含む): 42241920

約数和(自身を除く): 20529892

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13469, 26938, 53876, 175097, 350194, 417539, 700388, 835078, 1670156, 5428007, 10856014, 21712028]

約数ペア:

[(1, 21712028), (2, 10856014), (4, 5428007), (13, 1670156), (26, 835078), (31, 700388), (52, 417539), (62, 350194), (124, 175097), (403, 53876), (806, 26938), (1612, 13469)]