218723979

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{17839}}^1$

素因数の和:17970

約数の個数: 16

約数和(自身を含む): 300853760

約数和(自身を除く): 82129781

約数列:

[1, 3, 61, 67, 183, 201, 4087, 12261, 17839, 53517, 1088179, 1195213, 3264537, 3585639, 72907993, 218723979]

約数ペア:

[(1, 218723979), (3, 72907993), (61, 3585639), (67, 3264537), (183, 1195213), (201, 1088179), (4087, 53517), (12261, 17839)]