18737793

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 27729000

約数和(自身を除く): 8991207

約数列:

[1, 3, 9, 89, 149, 157, 267, 447, 471, 801, 1341, 1413, 13261, 13973, 23393, 39783, 41919, 70179, 119349, 125757, 210537, 2081977, 6245931, 18737793]

約数ペア:

[(1, 18737793), (3, 6245931), (9, 2081977), (89, 210537), (149, 125757), (157, 119349), (267, 70179), (447, 41919), (471, 39783), (801, 23393), (1341, 13973), (1413, 13261)]