2541721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 32

約数和(自身を含む): 3483648

約数和(自身を除く): 941927

約数列:

[1, 7, 13, 17, 31, 53, 91, 119, 217, 221, 371, 403, 527, 689, 901, 1547, 1643, 2821, 3689, 4823, 6307, 6851, 11501, 11713, 21359, 27931, 47957, 81991, 149513, 195517, 363103, 2541721]

約数ペア:

[(1, 2541721), (7, 363103), (13, 195517), (17, 149513), (31, 81991), (53, 47957), (91, 27931), (119, 21359), (217, 11713), (221, 11501), (371, 6851), (403, 6307), (527, 4823), (689, 3689), (901, 2821), (1547, 1643)]