19898757

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:598

約数の個数: 32

約数和(自身を含む): 31488000

約数和(自身を除く): 11589243

約数列:

[1, 3, 9, 19, 27, 57, 79, 171, 237, 491, 513, 711, 1473, 1501, 2133, 4419, 4503, 9329, 13257, 13509, 27987, 38789, 40527, 83961, 116367, 251883, 349101, 736991, 1047303, 2210973, 6632919, 19898757]

約数ペア:

[(1, 19898757), (3, 6632919), (9, 2210973), (19, 1047303), (27, 736991), (57, 349101), (79, 251883), (171, 116367), (237, 83961), (491, 40527), (513, 38789), (711, 27987), (1473, 13509), (1501, 13257), (2133, 9329), (4419, 4503)]