21568372

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11497}}^1$

素因数の和:11575

約数の個数: 24

約数和(自身を含む): 43784384

約数和(自身を除く): 22216012

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 11497, 22994, 45988, 80479, 160958, 321916, 770299, 1540598, 3081196, 5392093, 10784186, 21568372]

約数ペア:

[(1, 21568372), (2, 10784186), (4, 5392093), (7, 3081196), (14, 1540598), (28, 770299), (67, 321916), (134, 160958), (268, 80479), (469, 45988), (938, 22994), (1876, 11497)]