20881448

素因数分解:

$2^3\times 7^2\times {\mathrm{53269}}^1$

素因数の和:53289

約数の個数: 24

約数和(自身を含む): 45545850

約数和(自身を除く): 24664402

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 53269, 106538, 213076, 372883, 426152, 745766, 1491532, 2610181, 2983064, 5220362, 10440724, 20881448]

約数ペア:

[(1, 20881448), (2, 10440724), (4, 5220362), (7, 2983064), (8, 2610181), (14, 1491532), (28, 745766), (49, 426152), (56, 372883), (98, 213076), (196, 106538), (392, 53269)]