21130488

素因数分解:

$2^3\times 3^2\times {\mathrm{269}}^1\times {\mathrm{1091}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 57493800

約数和(自身を除く): 36363312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 269, 538, 807, 1076, 1091, 1614, 2152, 2182, 2421, 3228, 3273, 4364, 4842, 6456, 6546, 8728, 9684, 9819, 13092, 19368, 19638, 26184, 39276, 78552, 293479, 586958, 880437, 1173916, 1760874, 2347832, 2641311, 3521748, 5282622, 7043496, 10565244, 21130488]

約数ペア:

[(1, 21130488), (2, 10565244), (3, 7043496), (4, 5282622), (6, 3521748), (8, 2641311), (9, 2347832), (12, 1760874), (18, 1173916), (24, 880437), (36, 586958), (72, 293479), (269, 78552), (538, 39276), (807, 26184), (1076, 19638), (1091, 19368), (1614, 13092), (2152, 9819), (2182, 9684), (2421, 8728), (3228, 6546), (3273, 6456), (4364, 4842)]