20565207548

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{915311}}^1$

素因数の和:915493

約数の個数: 24

約数和(自身を含む): 37136038464

約数和(自身を除く): 16570830916

約数列:

[1, 2, 4, 41, 82, 137, 164, 274, 548, 5617, 11234, 22468, 915311, 1830622, 3661244, 37527751, 75055502, 125397607, 150111004, 250795214, 501590428, 5141301887, 10282603774, 20565207548]

約数ペア:

[(1, 20565207548), (2, 10282603774), (4, 5141301887), (41, 501590428), (82, 250795214), (137, 150111004), (164, 125397607), (274, 75055502), (548, 37527751), (5617, 3661244), (11234, 1830622), (22468, 915311)]