28807611

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^2$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 44838144

約数和(自身を除く): 16030533

約数列:

[1, 3, 7, 21, 71, 139, 213, 417, 497, 973, 1491, 2919, 9869, 19321, 29607, 57963, 69083, 135247, 207249, 405741, 1371791, 4115373, 9602537, 28807611]

約数ペア:

[(1, 28807611), (3, 9602537), (7, 4115373), (21, 1371791), (71, 405741), (139, 207249), (213, 135247), (417, 69083), (497, 57963), (973, 29607), (1491, 19321), (2919, 9869)]