21644385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1483}}^1$

素因数の和:1637

約数の個数: 32

約数和(自身を含む): 39889920

約数和(自身を除く): 18245535

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 139, 417, 695, 973, 1483, 2085, 2919, 4449, 4865, 7415, 10381, 14595, 22245, 31143, 51905, 155715, 206137, 618411, 1030685, 1442959, 3092055, 4328877, 7214795, 21644385]

約数ペア:

[(1, 21644385), (3, 7214795), (5, 4328877), (7, 3092055), (15, 1442959), (21, 1030685), (35, 618411), (105, 206137), (139, 155715), (417, 51905), (695, 31143), (973, 22245), (1483, 14595), (2085, 10381), (2919, 7415), (4449, 4865)]