20604181

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 4232939

約数列:

[1, 13, 29, 31, 41, 43, 377, 403, 533, 559, 899, 1189, 1247, 1271, 1333, 1763, 11687, 15457, 16211, 16523, 17329, 22919, 36859, 38657, 51127, 54653, 479167, 502541, 664651, 710489, 1584937, 20604181]

約数ペア:

[(1, 20604181), (13, 1584937), (29, 710489), (31, 664651), (41, 502541), (43, 479167), (377, 54653), (403, 51127), (533, 38657), (559, 36859), (899, 22919), (1189, 17329), (1247, 16523), (1271, 16211), (1333, 15457), (1763, 11687)]