21625611

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1123}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 33827904

約数和(自身を除く): 12202293

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1123, 2751, 3369, 6419, 7861, 19257, 23583, 55027, 147113, 165081, 441339, 1029791, 3089373, 7208537, 21625611]

約数ペア:

[(1, 21625611), (3, 7208537), (7, 3089373), (21, 1029791), (49, 441339), (131, 165081), (147, 147113), (393, 55027), (917, 23583), (1123, 19257), (2751, 7861), (3369, 6419)]