25405497

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 42810768

約数和(自身を除く): 17405271

約数列:

[1, 3, 9, 13, 17, 39, 51, 53, 117, 153, 159, 221, 241, 477, 663, 689, 723, 901, 1989, 2067, 2169, 2703, 3133, 4097, 6201, 8109, 9399, 11713, 12291, 12773, 28197, 35139, 36873, 38319, 53261, 105417, 114957, 159783, 166049, 217141, 479349, 498147, 651423, 1494441, 1954269, 2822833, 8468499, 25405497]

約数ペア:

[(1, 25405497), (3, 8468499), (9, 2822833), (13, 1954269), (17, 1494441), (39, 651423), (51, 498147), (53, 479349), (117, 217141), (153, 166049), (159, 159783), (221, 114957), (241, 105417), (477, 53261), (663, 38319), (689, 36873), (723, 35139), (901, 28197), (1989, 12773), (2067, 12291), (2169, 11713), (2703, 9399), (3133, 8109), (4097, 6201)]