51990861

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 76906368

約数和(自身を除く): 24915507

約数列:

[1, 3, 13, 39, 67, 101, 197, 201, 303, 591, 871, 1313, 2561, 2613, 3939, 6767, 7683, 13199, 19897, 20301, 39597, 59691, 87971, 171587, 258661, 263913, 514761, 775983, 1333099, 3999297, 17330287, 51990861]

約数ペア:

[(1, 51990861), (3, 17330287), (13, 3999297), (39, 1333099), (67, 775983), (101, 514761), (197, 263913), (201, 258661), (303, 171587), (591, 87971), (871, 59691), (1313, 39597), (2561, 20301), (2613, 19897), (3939, 13199), (6767, 7683)]