28987294

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{66791}}^1$

素因数の和:66831

約数の個数: 16

約数和(自身を含む): 51296256

約数和(自身を除く): 22308962

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 66791, 133582, 467537, 935074, 2070521, 4141042, 14493647, 28987294]

約数ペア:

[(1, 28987294), (2, 14493647), (7, 4141042), (14, 2070521), (31, 935074), (62, 467537), (217, 133582), (434, 66791)]