21284368

素因数分解:

$2^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3221}}^1$

素因数の和:3295

約数の個数: 40

約数和(自身を含む): 47943360

約数和(自身を除く): 26658992

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 59, 112, 118, 236, 413, 472, 826, 944, 1652, 3221, 3304, 6442, 6608, 12884, 22547, 25768, 45094, 51536, 90188, 180376, 190039, 360752, 380078, 760156, 1330273, 1520312, 2660546, 3040624, 5321092, 10642184, 21284368]

約数ペア:

[(1, 21284368), (2, 10642184), (4, 5321092), (7, 3040624), (8, 2660546), (14, 1520312), (16, 1330273), (28, 760156), (56, 380078), (59, 360752), (112, 190039), (118, 180376), (236, 90188), (413, 51536), (472, 45094), (826, 25768), (944, 22547), (1652, 12884), (3221, 6608), (3304, 6442)]