211653897

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1579}}^1$

素因数の和:2093

約数の個数: 32

約数和(自身を含む): 348257280

約数和(自身を除く): 136603383

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 491, 1473, 1579, 3437, 4737, 6383, 10311, 11053, 19149, 20527, 33159, 44681, 61581, 134043, 143689, 431067, 775289, 2325867, 5427023, 10078757, 16281069, 30236271, 70551299, 211653897]

約数ペア:

[(1, 211653897), (3, 70551299), (7, 30236271), (13, 16281069), (21, 10078757), (39, 5427023), (91, 2325867), (273, 775289), (491, 431067), (1473, 143689), (1579, 134043), (3437, 61581), (4737, 44681), (6383, 33159), (10311, 20527), (11053, 19149)]