21659224

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2377}}^1$

素因数の和:2467

約数の個数: 32

約数和(自身を含む): 43660080

約数和(自身を除く): 22000856

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 268, 536, 1139, 2278, 2377, 4556, 4754, 9112, 9508, 19016, 40409, 80818, 159259, 161636, 318518, 323272, 637036, 1274072, 2707403, 5414806, 10829612, 21659224]

約数ペア:

[(1, 21659224), (2, 10829612), (4, 5414806), (8, 2707403), (17, 1274072), (34, 637036), (67, 323272), (68, 318518), (134, 161636), (136, 159259), (268, 80818), (536, 40409), (1139, 19016), (2278, 9508), (2377, 9112), (4556, 4754)]