15975213

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{419}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 21772800

約数和(自身を除く): 5797587

約数列:

[1, 3, 71, 179, 213, 419, 537, 1257, 12709, 29749, 38127, 75001, 89247, 225003, 5325071, 15975213]

約数ペア:

[(1, 15975213), (3, 5325071), (71, 225003), (179, 89247), (213, 75001), (419, 38127), (537, 29749), (1257, 12709)]