28321657

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 35823816

約数和(自身を除く): 7502159

約数列:

[1, 7, 13, 49, 91, 173, 257, 637, 1211, 1799, 2249, 3341, 8477, 12593, 15743, 23387, 44461, 110201, 163709, 311227, 577993, 2178589, 4045951, 28321657]

約数ペア:

[(1, 28321657), (7, 4045951), (13, 2178589), (49, 577993), (91, 311227), (173, 163709), (257, 110201), (637, 44461), (1211, 23387), (1799, 15743), (2249, 12593), (3341, 8477)]