20942185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 28957824

約数和(自身を除く): 8015639

約数列:

[1, 5, 11, 37, 41, 55, 185, 205, 251, 407, 451, 1255, 1517, 2035, 2255, 2761, 7585, 9287, 10291, 13805, 16687, 46435, 51455, 83435, 102157, 113201, 380767, 510785, 566005, 1903835, 4188437, 20942185]

約数ペア:

[(1, 20942185), (5, 4188437), (11, 1903835), (37, 566005), (41, 510785), (55, 380767), (185, 113201), (205, 102157), (251, 83435), (407, 51455), (451, 46435), (1255, 16687), (1517, 13805), (2035, 10291), (2255, 9287), (2761, 7585)]